[Blindtlk] Use of the SVGDraw01 drawing program in STEM courses
T. Joseph Carter
tjcarter at spiritsubstance.com
Mon Sep 19 05:27:29 UTC 2011
Didn't I say on this very list, not so terribly long ago, that SVG
could allow a blind person to design graphics if only someone would
write the software to let them easily define them?
I probably can't be much help testing it out, since my computers are
fruit-flavored and it'll be a cold day someplace generally not cold
before I even consider paying $1200+ for JAWS!
Still, I'm pretty excited by Dick Baldwin's efforts which surely
must've preceded my comments by many months.
Joseph
On Sun, Sep 18, 2011 at 10:01:41PM -0500, David Andrews wrote:
>
>>From: Richard Baldwin <baldwin at dickbaldwin.com>
>>Date: Sat, 17 Sep 2011 16:29:46 -0500
>>To: BlindMath Mailing List <blindmath at nfbnet.org>
>>Subject: [Blindmath] Use of the SVGDraw01 drawing program in STEM courses
>>
>>This message is intended mainly for teachers of blind or visually impaired
>>students in STEM courses. Of course, this is a public forum and everyone is
>>welcome to read the message and provide comments as appropriate.
>>
>>Having been the sighted teacher of a blind student for several years, I
>>firmly believe that making it possible for blind and visually impaired
>>people, and particularly blind and visually impaired students in STEM
>>courses, to communicate using accurate printed and tactile graphics will
>>improve the quality of life and the likelihood of academic success for those
>>students.
>>
>>I have written a computer program that makes it possible, for the first time
>>in history, for blind and visually impaired people to create such graphics
>>in an accessible and user-friendly way.
>>
>>Version 0.0.8 of my drawing program for blind students is now posted and
>>available for free and immediate download at:
>>
>>http://www.austincc.edu/baldwin/SWT-SVG/SVGDraw01.zip
>>
>>Three components are necessary to accomplish the goal of widespread graphics
>>communication among blind and visually impaired students and their teachers:
>>
>> - Availability of a robust and universally accepted graphics standard.
>> - Availability of a robust, accessible, and user-friendly drawing program
>> that allows blind people to take advantage of the SVG standard.
>> - Availability of high-quality, economical, and readily available
>> graphics embossing equipment.
>>
>>A robust graphics standard - SVG
>>
>>A robust and universally accepted graphics standard is already available in
>>the form of Scalable Vector Graphics (SVG). See Scalable Vector Graphics
>>(SVG) 1.1 (Second Edition) <http://www.w3.org/TR/SVG/>
>>An accessible and user-friendly drawing program - SVGDraw01
>>
>>I have written and provided, free of charge, a drawing program that blind
>>and visually impaired people can use to draw pictures. To the best of my
>>knowledge, no other existing program provides that capability. (If such a
>>program exists, it is a well-kept secret.) Thus, for the first time in
>>history, your students can express themselves using graphics.
>>
>>While many drawing programs exist, they are written for use by sighted
>>people and not for use by blind people. My program is designed and written
>>specifically for use by blind and visually impaired people.
>>
>>Even though my program is still under development, it already provides the
>>capability for STEM students to create graphics that mirror many of the
>>figures and diagrams typically found in STEM textbooks.
>>A graph board on steroids
>>
>>As a teacher of blind or visually impaired students, you might think of this
>>program as bringing the old-fashioned graph board into the computer age.
>>Students and others using this program can create both printed and tactile
>>graphics using many of the same thought processes that they would use when
>>constructing a "drawing" on a graph board using pushpins, rubber bands, a
>>protractor, and a measuring stick.
>>
>>For example, one student might use this program to create and send an SVG
>>file to a friend with the message "Take a look at the cool floor plan of my
>>new apartment."
>>
>>Another student might use this program to create and send an SVG file to a
>>college professor with the message "This is a free body diagram showing the
>>magnitude and directions of forces F21 and F23 caused by the interactions
>>among charges q1, q2, and q3."
>>Getting an immediate visual output
>>
>>I will be adding new capabilities over time. However, I probably won't add
>>capabilities that would not be useful to blind and visually impaired users.
>>For example, the program does not, by default, produce an immediate visual
>>output. The primary output is intended to be a printer, a graphics embosser,
>>or both. But, if you are sighted, or if you are blind and using the vOICe
>>sonification software to view the progress of your drawing, you can use a
>>procedure described in the attached file to view your drawing as it
>>progresses.
>> High-quality, economical, and readily-available graphics embossing
>>equipment
>>
>>This is the area where we fall short relative to achieving our widespread
>>graphics communications goal. Although high-quality embossing equipment is
>>available in the marketplace, it is not economical (by computer standards)
>>nor is it readily available for the personal use of most blind students.
>>
>>I view this as a supply and demand problem. Prior to the release of my
>>program, there were no robust, accessible, and user-friendly tools that made
>>it possible for blind people to create accurate graphics for use with a
>>high-quality embosser. Thus, the demand for such embossing equipment has
>>been very limited. My hope is that by making it possible for all blind
>>people to create accurate graphics, the demand for such embossing equipment
>>will go up and the costs for the equipment will come down.
>>
>>Even today, however, many schools, colleges, and other organizations own
>>high-quality graphics embossing equipment that they can make available to
>>their blind and visually impaired clientele on some basis. In those cases,
>>there is no reason for blind people to hold back from learning to
>>communicate using graphics.
>>
>>My drawing program is freely available for you and your students to use. As
>>a teacher, it is up to you to connect your blind and visually impaired
>>students to those available hardware embossing resources.
>>
>>The attached HTML file is the User-Instruction file for my drawing program
>>named SVGDraw01.
>>
>>Richard Baldwin
>>Professor of Computer Information Technology
>>Austin Community College
>>baldwin at austincc.edu
>>http://www.austincc.edu/baldwin/
>>
>>Content-Type: text/html; charset=US-ASCII; name="Instructions.htm"
>>Content-Disposition: attachment; filename="Instructions.htm"
>>X-Attachment-Id: f_gsp41hv40
> Brief instructions for using the program named SVGDraw01
>
> Updated 09/17/11
>
> At any time, you can tab down to the button labeled "Press this button to
> return to the Action List," and use that button to abandon this
> Instructional document and return to the Action List. Do not press the Esc
> key.
>
>Index
>
> * [1]Purpose
>
> * [2]A robust graphics standard - SVG
> * [3]An accessible and user-friendly drawing program SVGDraw01
> * [4]High-quality, economical, and readily-available graphics
> embossing equipment
>
> * [5]A note about drawing orientation
> * [6]Program startup
> * [7]General user instructions
>
> * [8]Selecting actions from the Action List
> * [9]Performing the action
> * [10]Pressing the Esc key
> * [11]Text field objects
> * [12]Checkbox objects
> * [13]Button objects
> * [14]Message box objects
> * [15]Polylines, polygons, and paths
> * [16]The name and path of the output file
> * [17]Rotation, translation, and scaling
> * [18]A note about page size
>
> * [19]Action items
>
> * [20]User instructions
> * [21]Open existing drawing
> * [22]Start a new drawing
> * [23]Draw a line
> * [24]Draw a rectangle
> * [25]Draw a circle
> * [26]Draw an ellipse
> * [27]Draw a polyline, a polygon, or a path
>
> * [28]A csv file
> * [29]A path file
> * [30]Sample files
>
> * [31]Draw line of text
> * [32]Rotate shapes
> * [33]Translate shapes
> * [34]Scale shapes
> * [35]Delete shapes
> * [36]Stop program
> * [37]Write drawing file
>
> * [38]Please provide feedback
>
>Purpose
>
> Select [39]A note about drawing orientation to skip this section and go
> directly to the next major section.
>
> I firmly believe that making it possible for blind and visually impaired
> people, and particularly blind and visually impaired students in Science,
> Technology, Engineering, and Mathematics (STEM) to communicate using
> accurate printed and tactile graphics will improve the quality of life for
> those people. The purpose of this program is to make it possible for blind
> and visually impaired people to create such graphics in an accessible and
> user-friendly way.
>
> Three components are necessary to accomplish that [40]goal:
>
> * Availability of a robust and universally accepted [41]graphics
> standard.
> * Availability of an accessible and user-friendly [42]drawing program
> that allows blind people to take advantage of that standard.
> * Availability of high-quality, economical, and readily available
> graphics [43]embossing equipment.
>
> A robust graphics standard - SVG
>
> A robust and universally accepted graphics standard is already available
> in the form of Scalable Vector Graphics (SVG). See [44]Scalable Vector
> Graphics (SVG) 1.1 (Second Edition)
>
> An accessible and user-friendly drawing program - SVGDraw01
>
> This program is my attempt to provide, free of charge, a drawing program
> that makes it possible for blind and visually impaired people to take
> advantage of many of the capabilities of SVG. Even though the program is
> still under development, it already makes it possible for STEM students to
> create graphics that mirror many of the figures and diagrams typically
> found in STEM textbooks.
>
> A graph board on steroids
>
> One might think of this program as bringing the old-fashioned graph board
> that uses pushpins and rubber bands to convey graphic information into the
> computer age. Students and others using this program can create both
> printed and tactile graphics using much the same thought processes that
> they would use when constructing a "drawing" on a graph board using
> pushpins, rubber bands, a protractor, and a measuring stick.
>
> For example, one person might use this program to create and send an SVG
> file to a friend with the message "Take a look at the cool floor plan of
> my new apartment."
>
> Another person might use this program to create and send an SVG file to a
> college professor with the message "This is a free body diagram showing
> the magnitude and directions of forces F21 and F23 caused by the
> interactions among charges q1, q2, and q3."
>
> Getting an immediate visual output
>
> I will be adding new capabilities over time. However, I probably won't add
> capabilities that would not be useful to blind users. For example, the
> program does not, by default, produce a visual output. But, if you are
> sighted, or if you are a blind user using the vOICe sonification software
> to view the progress of your drawing, you can use the following procedure
> to create a visual output.
>
> Start the program and select the following two actions in sequence in the
> Action List:
>
> 1. "Start a new drawing"
> 2. "Write drawing file"
>
> Provide the requested information for both actions including the path and
> file name for the output SVG file.
>
> Then open the output SVG file in Firefox or IE9 (earlier versions of IE
> won't work) . You should see an empty drawing in the browser window.
>
> Return to the Action List and start drawing shapes. Each time you want to
> see an updated drawing, select and process "Write drawing file" and then
> refresh your browser. Your updated drawing should appear in the browser
> window. You should be able to continue adding shapes and viewing them so
> long as you don't select "Open existing drawing" or "Start a new drawing."
>
> High-quality, economical, and readily-available graphics embossing equipment
>
> This is the area where we fall short relative to achieving the
> [45]communications goal. Although high-quality embossing equipment is
> available, it is neither economical nor readily available for the majority
> of blind people.
>
> I view this as something of a supply and demand problem. Prior to the
> release of the developmental versions of this program, to the best of my
> knowledge, there have been no readily-available tools that make it
> possible for blind people to create accurate graphics for use with a
> high-quality embosser. Thus, the demand for such equipment has been very
> limited. My hope is that by making it possible for all blind people to
> create accurate graphics, the demand for such equipment will go up and the
> costs for the equipment will come down.
>
> Even today, however, many schools, colleges, and other organizations own
> high-quality graphics embossing equipment that they can make available to
> their clientele on some basis. In those cases, there is no reason for
> blind people to hold back from learning to communicate using accurate
> graphics.
>
>A note about drawing orientation
>
> In most STEM courses , you typically learn to draw graphs and other
> diagrams with the 0,0 origin in the lower-left corner of the drawing.
> Positive values along the y-axis go up the page and positive values along
> the x-axis go to the right.
>
> Unfortunately, in SVG, and most other computer graphics programming
> systems, the situation is reversed insofar as the y-axis is concerned. In
> SVG, and in this program as well, the 0,0 origin is at the top-left corner
> of the drawing and positive values along the y-axis go down the page.
>
> This not only has an impact on the physical locations of shape objects in
> your drawings, it also has an impact on the orientation of those objects.
> for example, this causes the reference corner for a rectangle to be the
> upper-left corner. It causes the location of the y-coordinate values for
> all shapes to be measured down from the top of the drawing instead of up
> from the bottom of the drawing.
>
> Note, however, that it does not change the fact that the reference
> location for a line of text is at the lower-left corner of the first
> character in the line.
>
> At some point, I may attempt to correct this issue arithmetically. In the
> meantime, however, you will simply need to get used to an upside-down
> coordinate system, and unfortunately, you may need to refer your teacher
> or professor to this section in this document.
>
>Program startup
>
> When the program starts, you will land in an Action List that provides the
> following actions:
>
> * [46]User instructions - opens this HTML file containing instructions
> in a browser window.
> * [47]Open existing drawing - opens a drawing file that was previously
> created and saved using SVGDraw01.
> * [48]Start a new drawing - starts fresh and creates a new drawing.
> * [49]Draw a line - draw a straight line segment between two specified
> points.
> * [50]Draw a rectangle - draw a rectangle at a specified location with a
> specified width and height.
> * [51]Draw a circle - draw a circle at a specified location with a
> specified radius.
> * [52]Draw an ellipse - draw an ellipse at a specified location with
> specified width and height.
> * [53]Draw a polyline, a polygon, or a path - draw a polyline, a
> polygon, or a path based on csv data or path data that is imported
> into the program.
> * [54]Draw a line of text - draw a line of text at a specified location
> with a specified point size and other parameters as well.
> * [55]Rotate shapes - rotate any one or more shapes by a specified angle
> in degrees clockwise around a specified center of rotation. See
> [56]Rotation, translation, and scaling below for cautions regarding
> the use of this action.
> * [57]Translate shapes - translate any one or more shapes by a specified
> distance along both the x-axis and the y-axis. See [58]Rotation,
> translation, and scaling below.
> * [59]Scale shapes - Multiply the coordinate values that make up one or
> more shapes by a scale factor to enlarge or shrink the shape. See
> [60]Rotation, translation, and scaling below.
> * [61]Delete shapes - delete one or more shapes from the current
> drawing.
> * [62]Stop program - just what it says. Be sure to write your drawing
> into an output file before selecting this action.
> * [63]Write drawing file - write the current drawing into an SVG file.
>
> The first action that you select should be "User Instructions", "Open
> existing drawing", or "Start a new drawing." You should always select
> either "Open existing drawing" or "Start a new drawing" and provide the
> requested information before selecting any of the actions below those two
> with the possible exception of the action titled "Stop program."
>
>General user instructions
>
> If you are reading this document from inside the program, you must have
> already opened this HTML document in an SWT browser widget. If so, keep
> reading.
>
> On the other hand, you may also have opened this document in a standard
> browser without running the program named SVGDraw01. If so, keep reading.
>
> Selecting actions from the Action List
>
> With the exception of the action named "Stop program", when you select an
> item in the Action List and press the Enter key, an action page will open
> containing labels, text fields, check boxes, radio buttons, push buttons,
> and other Graphical User Input (GUI) objects. That action page will
> enable you to provide the information needed and to perform the steps
> necessary to execute that action.
>
> Navigate down through those GUI objects with the tab key. Navigate up
> through the objects with the shift-tab key combination.
>
> Navigate through radio buttons and the items in lists using the arrow
> keys. Press the tab key to escape from a set of radio buttons or from a
> list without making a selection.
>
> Performing the action
>
> With the exception of the action labeled "Stop the program," there is a
> button on each Action Page that you must press to cause the action to be
> performed. If you tab past that button and return to the Action List, the
> selected action will not have been performed.
>
> Pressing the Esc key
>
> If you press the Esc key when any read/write object on any page has the
> focus, the current action will be abandoned and focus will return to the
> Action List where you can select another action.
>
> This html viewer is a read-only object and does not behave well if you
> press the Esc key. If you do accidentally press the Esc key while reading
> this document, use the tab key to work your way back to the Action List.
>
> A few of the other objects are read-only objects and do not respond at all
> to the Esc key. They only respond to the tab key.
>
> Text field objects
>
> Press the tab key to accept the default value in a text field. To change
> the value in the field, type the new value and press the tab key.
> Normally, it should not be necessary for you to delete the current
> contents of a text field in order to change it. However, you may find
> situations where it is necessary for you to delete the current contents so
> be on the lookout for those situations.
>
> Checkbox objects
>
> You must press the space bar to check or uncheck a check box. (The Enter
> key won't do the job.)
>
> Button objects
>
> You can press either the space bar or the Enter key to activate a button
> when it has the focus.
>
> Message box objects
>
> A message box will appear to announce the completion of those actions
> where completion is not obvious such as writing the output file, for
> example.
>
> Most errors will also result in the appearance of a message box. In most
> cases, you can press either the space bar or the Enter key to dismiss a
> message box. However, in some cases you must select one of two buttons
> labeled Yes and No.
>
> If you discover errors that do not result in a message box, please let me
> know.
>
> Polylines, polygons, and paths
>
> The polyline, the polygon, and the path are by far the most versatile
> shapes that you can draw with this program. For example, if you need to
> plot a function such as y = x^2, the polyline shape or the path shape are
> probably your best choices.
>
> I will explain how to draw these three types of shapes in more detail
> [64]later.
>
> The name and path of the output file
>
> When you select "Write Drawing File" in the Action List, you will be
> prompted to enter a file name for the output file. If you are running the
> program from an executable jar file, you should provide both a path and a
> file name, or you probably won't be able to find your output file on your
> disk.
>
> Rotation, translation, and scaling
>
> These three features, which fall in the general category of SVG
> transforms, are relatively easy to use as long as you don't combine them
> on a single shape. However, once you combine them, the topic of SVG
> transforms becomes an advanced topic and will probably require outside
> study on your part for proper use.
>
> Among other things, when you apply a combination of rotation, translation,
> and/or scaling transforms, the order in which you perform the operations
> is critically important to the outcome. A good understanding of the use of
> transforms in SVG is needed in order to understand those outcomes.
>
> A note about page size
>
> Your printer is probably not capable of printing from the extreme left
> edge to the extreme right edge, or from the extreme top edge to the
> extreme bottom edge of the largest paper size that it is advertised to
> accommodate. For example my HP Deskjet 6940 printer advertises "Borderless
> Printing up to 8.5 x 24 in." However, the largest rectangle that it will
> actually print is 8.14 x 10.63 inches on a sheet of paper that is 8.5
> inches wide and 11 inches high. Therefore, you should probably allow for
> some loss of print width and print height on the right side and the bottom
> of the page.
>
> If you plan to emboss your drawing on a tactile graphics embosser, you may
> also need to purposely leave a margin on both sides of your drawing to
> accommodate the width of the mechanical embossing mechanism. Check the
> specifications of the embosser that you plan to use to determine what
> those margins need to be..
>
>Action items
>
> As mentioned earlier, when you first start the program you will land in an
> [65]Action List that allows you to select and perform any one of more than
> one dozen different drawing actions. I will discuss each of those actions
> in this section so that you will know what to expect when you select one
> of them.
>
> User instructions
>
> If you select "User instructions" in the Action List and press the Enter
> key, you will land on a page containing a button labeled "Press this
> button to open instructions in a browser." When you press that button,
> this HTML document will open in a separate browser window. Note that the
> browser window is an SWT Widget, and may appear to be different in some
> respects from your standard browser. However, you should be able to
> navigate and read the document just like you would read any other HTML
> document in a browser window.
>
> When you get to the end of the document, pressing the tab key will land
> you on a button labeled "Press this button to return to the Action List."
> As the name implies, pressing the button will cause the browser window to
> close and focus will return to the Action List where you can make another
> selection.
>
> Almost every page has an "Action" button near the end. If you simply tab
> past that button and don't press it, focus will return to the Action List
> and the action will not be performed
>
> Open existing drawing
>
> Selecting this Action and pressing the Enter key will land you on a page
> from which you can open a previously-saved drawing file that was created
> using this program.
>
> (SVG drawing files created using other program may or may not work, so
> don't be surprised if you open a drawing file that was created using a
> different program and you experience errors.)
>
> Be aware that any work that you may have been doing on a new drawing will
> be lost unless you save that work by selecting [66]Write drawing file
> before executing this action.
>
> The Action page for this Action is relatively simple. You will be
> presented with a text field and asked to "Enter name and path of drawing
> file to open." The existing drawing will have an extension of .svg. Once
> you have entered the requested information, press the tab key and you will
> land on a button labeled "Press to open drawing file."
>
> Pressing that button will cause a Message Box to pop up containing
> information about the search for the existing drawing file. Press the OK
> button on that Message Box and the search will begin. You may have to be
> very patient at this point. Sometimes it takes a quite a while on my
> computer for the program to find and open the existing drawing file.
>
> If the file is not found, a Message Box will pop up with that information.
> Press OK to dismiss the Message Box and focus will return to the Action
> List.
>
> If the file is found and opened, a Message Box will pop up with that
> information as well. When you press the OK button on that Message Box,
> focus will return to the Action List.
>
> Start a new drawing
>
> Select this action to start a new drawing. When you select this action and
> press the Enter key, you will land on a page from which you can provide
> the information required for a new drawing.
>
> The first two text fields allow you to enter a title and a description for
> your new drawing. If you simply tab past those two fields, a default title
> and a default description will be recorded for your new drawing.
>
> You will be asked to enter the width and height in inches of your new
> drawing in the next two text fields. If you simply tab past those two
> fields, default values will be assigned for width and height.
>
> A very important point
>
> This is where I need to explain a very important point. You specify the
> width and height of your new drawing in inches, such as 8.5 inches and 11
> inches. However, just enter the numbers. Don't enter the units. The units
> of inches are understood by the program.
>
> After you establish the width and height of your new drawing in inches by
> executing this action, you will be asked later to provide coordinate
> and/or dimensional information for many other actions. In those cases, you
> will provide the information in units of 0.01 inch, or 100 units per inch.
> For example, if you later decide to draw a rectangle that is 8.5 inches
> wide and 11 inches high, you will specify the width as 850 and you will
> specify the height as 1100.
>
> The Action button
>
> Like most other Action pages, this page has an Action button near the end
> that is labeled "Press to start drawing." When you press that button, a
> Message Box will pop up to acknowledge that the new drawing is started.
> Pressing the OK button on the Message Box will return the focus to the
> Action List.
>
> Draw a line
>
> Selecting this action and pressing the Enter key will land you on a page
> from which you can draw a line segment between any two points in your
> drawing.
>
> The title and description fields
>
> On this page, as on may other pages, the first two fields allow you to
> enter a title and description for the line object. If you tab through
> these two fields, a default title and a default description will be
> assigned to the object. Because this is essentially the same on all pages,
> I won't mention it with respect to Action pages that I discuss in the
> remaining sections of this document.
>
> Coordinate-value fields
>
> You will be asked to enter the x and y coordinate values for one end of
> the line in the next two fields. As usual, the fields already contain
> default values that you can accept by simply tabbing through the fields.
>
> You will then be asked to enter the x and y coordinate values for the
> other end of the line in the next two fields.
>
> Stroke width and opacity
>
> You will be asked to enter the stroke width and opacity in the next two
> fields. You will encounter these same two fields on many action pages and
> the meaning will always be the same. Therefore, I will explain the meaning
> here and then ignore it for the remainder of this document.
>
> The stroke width
>
> The stroke width is the width or thickness of the line that will be drawn.
> If you are planning to emboss the drawing, the stroke width should
> probably be at least as wide as the distance between two dots on the
> embosser. If the embosser supports 20 dots per inch, the stroke width
> should probably be at least 5, which represents 0.05 inch or the distance
> between the dots on a 20 dot per inch embosser.
>
> If the embosser supports 16 dots per inch, the stroke width should
> probably be at least 6.25, which represents 0.0625 inch or the distance
> between the dots at 16 dots per inch.
>
> You may find that those values aren't sufficient to provide high-quality
> embossing and you may may need to make the stroke width even wider than
> the values suggested above.
>
> The opacity
>
> If we were talking about color, opacity would be a complicated topic.
> However, since we are only talking about white, black, and gray, the
> concept of opacity is fairly simple.
>
> You will be asked to enter a value between 0 and 1 for the stroke opacity.
> The line will be drawn pure black for a value of 1.
>
> The line will essentially not be drawn and therefore will be invisible for
> a value of 0.
>
> The line will be drawn with a shade of gray that is half way between
> between white and black for a value of 0.5.
>
> The greater the opacity value, the darker will be the line. The smaller
> the opacity value, the lighter will be the line.
>
> On an embosser with variable dot height, a value of 1 will produce dots
> with the maximum height. For lower stroke opacity values, the height of
> the dots will be lower.
>
> (Also see [67]The fill checkbox and fill opacity later.)
>
> Draw a rectangle
>
> Selecting this action and pressing the Enter key will land you on a page
> from which you can draw a rectangle whose sides are parallel to the
> horizontal and vertical axes. If you need a rectangle whose sides are not
> parallel to the horizontal and vertical axes, you can draw it with this
> action and then [68]rotate it later or draw it as a [69]polygon or as a
> [70]path.
>
> Using this action, you specify the x and y coordinates of the upper-left
> corner of the rectangle and the width and the height of the rectangle. As
> before, you also specify the stroke width and the stroke opacity.
>
> The fill checkbox and fill opacity
>
> This action, along with several of the other actions to be discussed
> later, introduces a new parameter - fill. I will explain it here and then
> ignore it when discussing actions in subsequent sections.
>
> Because this is a closed geometric shape, you can cause it to be filled
> with a color ranging from black through gray to white.
>
> Before you reach the action button while navigating down this action page,
> you will come to a checkbox labeled "Check this box for black fill." You
> can check (and uncheck) the box by pressing the space bar while the
> checkbox has the focus.
>
> If you check the box, a new text field will be exposed between the
> checkbox and the action button. You will be asked to "Enter value between
> 0 and 1 for fill opacity." Opacity has the same meaning here that it has
> for stroke opacity discussed earlier, except that this time it doesn't
> simply apply to a line. Rather, it applies to an entire area defined by a
> line.
>
> A word of caution is in order here. I have been told that if you plan to
> emboss your graphic using an embosser with variable dot height, you should
> avoid filling large areas with large opacity values. I have been told that
> this can cause undesirable paper buckling when the embosser attempts to
> emboss a large area with high dots. It was suggested that low opacity
> values should be used when filling.
>
> The Action button for the rectangle
>
> Finally, you will come to an action button labeled "Press to draw
> rectangle." As usual, pressing the button will cause the rectangle object
> to become a part of your drawing and focus will return to the Action List.
>
> Draw a circle
>
> Selecting this action and pressing the Enter key will land you on a page
> from which you can draw a circle at a given location with a given radius.
>
> You won't find anything new on this page. You will be asked to enter the x
> and y coordinates for the circle along with the radius of the circle.
>
> Draw an ellipse
>
> Selecting this action and pressing the Enter key will land you on a page
> from which you can draw an ellipse at a given location with a given radius
> along the horizontal axis and a different radius along the vertical axis.
> As with the rectangle, you may need to [71]rotate the shape later if the
> default orientation is not what you need.
>
> In case you aren't familiar with this shape, an ellipse is like a squashed
> circle. It is a smooth closed shape, but its radius may be larger along
> one axis than it is along the other axis.
>
> Once again, you won't find anything new on this action page. This page is
> much like the page for drawing a circle except that on this page, you will
> be asked to provide both a horizontal radius and a vertical radius. If you
> enter the same value for both of the radii, you will end up with a circle.
>
> Draw a polyline, a polygon, or a path
>
> Selecting this action and pressing the Enter key will land you on a page
> from which you can draw a polyline, a polygon, or a path.
>
> Polyline and polygon
>
> For either a polyline or a polygon, you provide the x and y coordinate
> values for a set of points. (I will provide and example later.) The points
> are connected by straight line segments in the order that you define the
> points. The only difference between the two is that when you draw a
> polygon, the last point is automatically connected to the first point
> creating a closed shape.
>
> A path
>
> A path is a different kind of animal altogether. It can be used to draw
> something as simple as a straight line segment, and can also be used to
> draw something as complex as a cubic Bezier curve or an elliptical arc.
>
> To use this feature of the program, you will probably need to first study
> SVG paths. The best material that I have found on the topic is a tutorial
> located at [72]https://developer.mozilla.org/en/SVG/Tutorial/Paths.
> Hopefully, it will be sufficiently accessible that you can read it.
>
> To draw a path, you provide a string of characters consisting of both SVG
> path commands and coordinate information. I will provide an example later.
>
> The action page
>
> The action page for this action is relatively straightforward. The first
> new thing on the page is a set of three radio buttons by which you specify
> that you want to draw one of the following three shapes:
>
> * Polyline
> * Polygon
> * Path
>
> Then you are asked to provide the name and path of a file to import that
> contains the information from which the shape will be drawn. When you
> enter that information and press the tab key, you land on a button labeled
> "Press this button to import data file."
>
> If you selected either the Polyline or the Polygon radio button, you will
> need to provide a [73]csv file containing the data. This file must have an
> extension of .csv or it will be rejected.
>
> If you selected the Path radio button, you will need to provide a [74]path
> file containing the data. This file must have an extension of .pth or it
> will be rejected.
>
> A csv file
>
> A csv file is a simple text file containing x,y coordinate value pairs
> with no spaces and with each value followed by a comma. You can put one or
> more values on each line so long as you are careful to follow each value
> with a comma. You can omit the comma at the end of the line if you wish.
> As mentioned above, the file must have an extension of .csv or it will be
> rejected.
>
> Here are the contents of a simple csv file that can be used to draw either
> a polyline or a polygon
>
> 200,200
> 600,200
> 400,400
>
> If you were to use this data to draw a polyline, the program would draw
> two sides of a triangle. If you were to use it to draw a polygon, the
> program would draw all three sides of the same triangle.
>
> A path file
>
> A path file contains the actual SVG code for the path that you want to
> draw. For example, a file containing the following characters will cause a
> cubic Bezier curve to be drawn:
>
> M130 110 C 120 140, 180 140, 170 110
>
> You will find an explanation of this SVG code in the section on Bezier
> curves at [75]https://developer.mozilla.org/en/SVG/Tutorial/Paths.
>
> Sample files
>
> The executable jar file containing this program contains some sample csv
> files and some sample path files in a folder named Samples. You can
> extract those files using a program like WinZip and use them to experiment
> with the data import feature for drawing polylines, polygons, and paths.
>
> Many programs, including Microsoft Excel, produce csv files as a standard
> output. You can also create your own csv files using a text editor.
>
> I have never seen a program that produces path files as a standard output
> format. Therefore, if you use them, you will probably need to create them
> using a text editor. Although that may sound like a daunting task, you may
> find it worth your while because you can squeeze a lot of graphic
> information into a path file once you understand SVG paths.
>
> For example, assume that you frequently need to draw curves in a Cartesian
> coordinate system with an x-axis, a y-axis, and tic marks along each axis,
> or maybe you need to draw grid lines instead of tic marks. You could
> create a path file for that basic structure. Then whenever you need to
> draw a graph, you could begin by importing the path file for the axes and
> then draw your data points within those axes.
>
> Draw line of text
>
> Selecting this action and pressing the Enter key will land you on a page
> from which you can draw a single line of text at a given location with a
> given font face (such as Arial) and a given point size. You have three
> choices for the font style (normal, italic, or oblique). You also have
> four choices for the font weight (normal, bold, bolder, or lighter).
>
> If you have worked through the discussions of the action pages in the
> previous sections of this document, you shouldn't find anything new on
> this action page.
>
> The starting x and y coordinate values specify the location of the
> lower-left corner of a rectangle that fully encloses the first character
> in the line of text.
>
> A point size of 72 will probably produce an upper-case "T" that is
> approximately one-half inch from top to bottom on your printer. Other
> point sizes produce text that is proportionally larger or smaller.
>
> Rotate shapes
>
> The first few actions in the [76]Action List discussed earlier deal with
> getting instructions and either starting a new drawing or opening an
> existing drawing. After that, the next several actions in the [77]Action
> List, which were also discussed earlier, deal with drawing specific shapes
> such as lines, rectangles, circles, paths, etc.
>
> Beginning with this section, the next several actions in the [78]Action
> List deal with actions that you can perform on shapes that you have
> already drawn. The first of these actions is the "Rotate shapes" action.
>
> Selecting the "Rotate shapes" action and pressing the Enter key will land
> you on a page from which you can select one or more existing shapes and
> cause them to be rotated about a specific point by a specific angle in
> degrees clockwise. (Negative angles rotate counter-clockwise.)
>
> The action page
>
> The action page for this action is relatively straightforward. First you
> press a button labeled "Press to get list of shapes in your drawing" to
> populate a physical list with identifying information about each shape
> that you have thus far created in your drawing. You can navigate up and
> down that list using the arrow keys.
>
> Each shape in the list is identified as follows:
>
> Title {Description} [Unique identifier]
>
> The first two items in the identifying information are the title and
> description that you assigned to the shape when you created it, or a
> default title and description if you didn't enter a title or description.
>
> The third item is a unique identifier that was created by the program when
> the shape was created. This identifier can be used to differentiate among
> different shapes having the same titles and descriptions.
>
> Embedded instructions
>
> Instructions are embedded among the GUI components on many of the action
> pages. On this page, after you press the button to populate the list, you
> will see the following instructions:
>
> "When you press the tab key, you will land in a Combo List Box containing
> one item for each shape in your drawing. You can mark a shape for rotation
> by selecting the shape using the arrow keys and then pressing the 'r' key.
> Press the tab key to move out of the Combo List Box."
>
> After using the arrow keys and the 'r' key to mark all of the shapes that
> you want to rotate around a common point, you can press the tab key, enter
> the coordinates of the common rotation point, and enter the rotation angle
> in degrees clockwise.
>
> Finally, you can press a button labeled "Press to rotate shapes" to cause
> the rotation to be performed. This is the point where your drawing is
> actually modified. If you tab past this button and return the focus to the
> Action List, your drawing will not have been modified.
>
> Before using the rotation feature, you should read the cautions in the
> [79]Rotation, translation, and scaling section.
>
> Translate shapes
>
> Selecting the "Translate shapes" action and pressing the Enter key will
> land you on a page from which you can select one or more existing shapes
> and cause them to be translated (moved) by specific distances along the
> horizontal and vertical axes.
>
> The procedure for performing this action is essentially the same as the
> procedure for rotating shapes. The differences are:
>
> * In this case, you specify translation distances instead of the
> rotation point and rotation angle required by rotation.
> * In this case, you mark the shapes that are to be translated using the
> 't' key instead of the 'r' key.
>
> If you understand how to rotate shapes, you should have no problem using
> this action to translate shapes.
>
> Once again, however, before using the translation feature, you should read
> the cautions in the [80]Rotation, translation, and scaling section.
>
> Scale shapes
>
> Selecting the "Scale shapes" action and pressing the Enter key will land
> you on a page from which you can select one or more existing shapes and
> cause them to be scaled (made larger or smaller) by applying specific
> multiplicative scale factors along the horizontal and vertical axes.
>
> The procedure for performing this action is essentially the same as the
> procedure for rotating shapes. The differences are:
>
> * In this case, you specify multiplicative scale factors instead of the
> rotation point and rotation angle required by rotation.
> * In this case, you mark the shapes that are to be scaled using the 's'
> key instead of the 'r' key.
>
> If you understand how to rotate shapes, you should have no problem using
> this action to scale shapes.
>
> Before using the scaling feature, you should read the cautions in the
> [81]Rotation, translation, and scaling section.
>
> Delete shapes
>
> Selecting the "Delete shapes" action and pressing the Enter key will land
> you on a page from which you can select one or more existing shapes and
> cause them to be deleted from your drawing.
>
> The procedure for deleting shapes is similar to but simpler than the
> procedure for rotating shapes. The differences are:
>
> * In this case, there are no coordinate values to be provided. Instead,
> you simply mark the shapes that are to be deleted and press the button
> labeled "Press to delete shapes."
> * In this case, you mark the shapes that are to be deleted by pressing
> the 'Delete' key. Note, however, that the shapes are not actually
> deleted from your drawing until you press the button labeled "Press to
> delete shapes" later. Once again, if you tab past that button and
> return the focus to the Action List, the shapes that you marked will
> not be deleted from your drawing.
>
> If you understand how to rotate shapes, you should have no problem using
> this action to delete shapes.
>
> Stop program
>
> As the name implies, selecting the "Stop program" action and pressing the
> Enter key will cause the program to be terminated. Make sure that you have
> performed the [82]Write drawing file action before performing this action
> if you want to save your drawing.
>
> Write drawing file
>
> Selecting this action and pressing the Enter key will land you on a page
> from which you can save your drawing with a specific file and path name.
> The extension .svg will be automatically appended to the file name that
> you specify so you should not include it when you enter the path and file
> name.
>
> Each time you perform this action, the current state of your drawing will
> be saved in the specified file. It might be a good idea to perform this
> action often while creating a drawing so that if you make a mistake (or
> you have a power failure), you can re-open the most recent good version of
> the drawing file.
>
>Please provide feedback
>
> Please let me know if you find errors in these instructions, or you find
> areas that deserve a more thorough explanation.
>
> I would also like to hear about it if there are features that you would
> like to see added to this program.
>
> Dick Baldwin
> baldwin at dickbaldwin.com
>
>References
>
> Visible links
> 1. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#Purpose
> 2. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#A_robust_graphics_standardSVG
> 3. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#An_accessible_and_userfriendly_drawing_program
> 4. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#High-quality,_economical,_and_readilyavailable_graphics_embossing_equipment
> 5. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#Orientation
> 6. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#Program_startup
> 7. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#User_instructions
> 8. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#Selecting_action_items
> 9. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#Performing_the_action
> 10. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#Pressing_the_Esc_key
> 11. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#Text_field_objects
> 12. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#Checkbox_objects
> 13. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#Button_objects
> 14. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#Message_box_objects
> 15. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#Polylines_and_polygons
> 16. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#The_name_and_path_of_the_output_file
> 17. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#Rotation_translation_and_scaling
> 18. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#A_note_about_page_size
> 19. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#Specific_user_instructions
> 20. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#userInstructions2
> 21. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#Open_existing_drawing
> 22. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#Start_a_new_drawing
> 23. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#Draw_a_line
> 24. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#Draw_a_rectangle
> 25. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#Draw_a_circle
> 26. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#Draw_an_ellipse
> 27. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#Draw_a_polyline,_a_polygon,_or_a_path
> 28. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#A_csv_file
> 29. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#A_path_file
> 30. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#Sample_csv_files
> 31. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#Draw_line_of_text
> 32. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#Rotate_shapes
> 33. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#Translate_shapes
> 34. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#Scale_shapes
> 35. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#Delete_shapes
> 36. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#Stop_program
> 37. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#Write_drawing_file
> 38. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#Please_provide_feedback
> 39. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#Orientation
> 40. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#to_communicate
> 41. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#A_robust_graphics_standardSVG
> 42. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#An_accessible_and_userfriendly_drawing_program
> 43. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#High-quality,_economical,_and_readilyavailable_graphics_embossing_equipment
> 44. http://www.w3.org/TR/SVG/
> 45. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#to_communicate
> 46. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#userInstructions2
> 47. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#Open_existing_drawing
> 48. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#Start_a_new_drawing
> 49. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#Draw_a_line
> 50. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#Draw_a_rectangle
> 51. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#Draw_a_circle
> 52. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#Draw_an_ellipse
> 53. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#Draw_a_polyline,_a_polygon,_or_a_path
> 54. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#Draw_line_of_text
> 55. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#Rotate_shapes
> 56. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#Rotation_translation_and_scaling
> 57. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#Translate_shapes
> 58. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#Rotation_translation_and_scaling
> 59. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#Scale_shapes
> 60. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#Rotation_translation_and_scaling
> 61. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#Delete_shapes
> 62. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#Stop_program
> 63. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#Write_drawing_file
> 64. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#Draw_a_polyline,_a_polygon,_or_a_path
> 65. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#actionItemListInToc
> 66. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#Write_drawing_file
> 67. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#The_fill_checkbox_and_fill_opacity
> 68. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#Rotate_shapes
> 69. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#Draw_a_polyline,_a_polygon,_or_a_path
> 70. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#Draw_a_polyline,_a_polygon,_or_a_path
> 71. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#Rotate_shapes
> 72. https://developer.mozilla.org/en/SVG/Tutorial/Paths
> 73. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#A_csv_file
> 74. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#A_path_file
> 75. https://developer.mozilla.org/en/SVG/Tutorial/Paths
> 76. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#Specific_user_instructions
> 77. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#Specific_user_instructions
> 78. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#Specific_user_instructions
> 79. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#Rotation_translation_and_scaling
> 80. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#Rotation_translation_and_scaling
> 81. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#Rotation_translation_and_scaling
> 82. file:///var/folders/PO/POq4Tg5bH%2byUDGqlRkdWZ%2b%2b%2b%2bTI/-Tmp-/Instructions.htm#Write_drawing_file
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