G Code Plotting Python

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Matplotlib recognizes the following formats in the table below to specify acolor.

  1. A Python 3 installation and some G-Code to plot. How you use it: Open the laserPlotter.py file with your text editor, adjust the parameters, execute it, and watch the plot appear.
  2. Jul 07, 2020 The user presses the Play button to run the g-code. When a g-code reaches the line where it should execute an external Python script, PlanetCNC allows two ways of script execution: with (PY,PYTHON-SCRIPT) command, a python script is executed and PlanetCNC waits for it to finish until it proceeds to the next line of g-code.
  3. It features Python indentation, line numbers, code folding, syntax highlighting, shell access, code completion, a program runner, a source browser, indentation guides, a white space indicator, autosaving, an edge line, multiple tabs, printing, jumping to a specific line, word searching, word replacement, zooming undo/redo, pastebin.com code.

Aug 03, 2016 I want to read a g code file line by line, and based off of a comment at the end, do an action to it. The g code is coming out of Slic3r. Some example lines in no particular order look like this.

FormatExample
RGB or RGBA (red, green, blue, alpha)tuple of float values in a closedinterval [0, 1].
  • (0.1,0.2,0.5)
  • (0.1,0.2,0.5,0.3)
Case-insensitive hex RGB or RGBAstring.
  • '#0f0f0f'
  • '#0f0f0f80'
Case-insensitive RGB or RGBA stringequivalent hex shorthand ofduplicated characters.
  • '#abc' as '#aabbcc'
  • '#fb1' as '#ffbb11'
String representation of float valuein closed interval [0,1] forblack and white, respectively.
  • '0.8' as light gray
  • '0' as black
  • '1' as white

Single character shorthand notationfor shades of colors.

Note

The colors green, cyan,magenta, and yellow do notcoincide with X11/CSS4colors.

  • 'b' as blue
  • 'g' as green
  • 'r' as red
  • 'c' as cyan
  • 'm' as magenta
  • 'y' as yellow
  • 'k' as black
  • 'w' as white
Case-insensitive X11/CSS4 color namewith no spaces.
  • 'aquamarine'
  • 'mediumseagreen'
Case-insensitive color name fromxkcd color survey with 'xkcd:'prefix.
  • 'xkcd:skyblue'
  • 'xkcd:eggshell'

Case-insensitive Tableau Colors from'T10' categorical palette.

  • 'tab:blue'
  • 'tab:orange'
  • 'tab:green'
  • 'tab:red'
  • 'tab:purple'
  • 'tab:brown'
  • 'tab:pink'
  • 'tab:gray'
  • 'tab:olive'
  • 'tab:cyan'

'CN' color spec where 'C'precedes a number acting as an indexinto the default property cycle.

Note

Matplotlib indexes colorat draw time and defaultsto black if cycle does notinclude color.

  • 'C0'
  • 'C1'
rcParams['axes.prop_cycle'] (default: cycler('color',['#1f77b4','#ff7f0e','#2ca02c','#d62728','#9467bd','#8c564b','#e377c2','#7f7f7f','#bcbd22','#17becf']))

See also

The following links provide more information on colors in Matplotlib.
  • Color Demo Example
  • matplotlib.colors API
  • List of named colors Example
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'Red', 'Green', and 'Blue' are the intensities of those colors. In combination,they represent the colorspace.

Matplotlib draws Artists based on the zorder parameter. If there are nospecified values, Matplotlib defaults to the order of the Artists added to theAxes.

The alpha for an Artist controls opacity. It indicates how the RGB color of thenew Artist combines with RGB colors already on the Axes.

The two Artists combine with alpha compositing. Matplotlib uses the equationbelow to compute the result of blending a new Artist.

G code plotting python downloadPlotting

Alpha of 1 indicates the new Artist completely covers the previous color.Alpha of 0 for top color is not visible; however, it contributes to blendingfor intermediate values as the cumulative result of all previous Artists. Thefollowing table contains examples.

Alpha valueVisual
0.3
1

Note

Re-ordering Artists is not commutative in Matplotlib.

'CN' color selection¶

Matplotlib converts 'CN' colors to RGBA when drawing Artists. TheStyling with cycler section contains additionalinformation about controlling colors and style properties.

The first color 'C0' is the title. Each plot uses the second and thirdcolors of each style's rcParams['axes.prop_cycle'] (default: cycler('color',['#1f77b4','#ff7f0e','#2ca02c','#d62728','#9467bd','#8c564b','#e377c2','#7f7f7f','#bcbd22','#17becf'])). They are 'C1' and 'C2',respectively.

Comparison between X11/CSS4 and xkcd colors¶

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The xkcd colors come from a user survey conducted by the webcomic xkcd.

95 out of the 148 X11/CSS4 color names also appear in the xkcd color survey.Almost all of them map to different color values in the X11/CSS4 and inthe xkcd palette. Only 'black', 'white' and 'cyan' are identical.

For example, 'blue' maps to '#0000FF' whereas 'xkcd:blue' maps to'#0343DF'. Due to these name collisions, all xkcd colors have the'xkcd:' prefix.

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The visual below shows name collisions. Color names where color values agreeare in bold.

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Total running time of the script: ( 0 minutes 1.149 seconds)

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