Download D3PLOT 12.0 user manual

User manual Version 12.0, October 2014
D3PLOT
X x Y resolution: Setting the 2D hidden-line calculation
resolution
Both types of hidden-line calculation method use an internal resolution which, by default is set to the resolution (in
pixels) of the graphics window. You can override this value by typing in new <x> and/or <y> values, and subsequent
plots will use those values until you resize the window.
You might wish to reduce the resolution in order to speed up hidden-line plots, especially in "rigorous" mode, where
the time taken is proportional to the product of <x> * <y>. There will be a corresponding reduction in image quality.
Hint: There is an easier way of doing this. Before you issue the plotting command resize the graphics window to
make it small, draw the image, then resize it again to its original dimensions. The image will be computed at
the smaller resolution but displayed at the full size.
Notes on hidden-line methods and resolution:
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Laser plots are computed at the current screen resolution so you could set a high resolution to improve laser
image quality on a low resolution device.
On windows devices the resolution is reset every time the window is resized: this operation will supersede any
setting made explicitly with the X x Y resolution command.
When dithered contouring or shading is used, or a solid filled plot (i.e. CT, SH, SI) drawn in "rigorous" mode,
the display has to be calculated at the window pixel resolution, regardless of any of the settings made here.
These internal settings are made for you automatically, and are transient for the duration of that plotting
operation only, they do not change anything set here.
All of the above is applicable to 2D mode plotting only. Z-buffered hidden-line plotting under OpenGL in 3D
mode is implemented completely differently, it is implicitly "rigorous"
FILL COLOUR .... Setting the hidden-line
fill colour for 2d and 3d elements.
By default 2D and 3D elements are filled with the current background colour, whatever that may be.
However by clicking on the FILL COLOUR... button you may choose any other colour. The feedback button shows
the current colour (here "B’Ground").
The following three images demonstrate how the fill colour can be modified:
(1) This image shows the default
behaviour:
Black background with element infill in the
background colour.
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