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This Web site is dedicated to the thousands of "users" of my programs, those who have helped test my programs over the last 22 or so years, and especially those who shared their experiences with me.

You must read this notice: This is a licensed Web site (HTML document and associated files). You must read and agree to be legally bound in contract by the Terms of Use and conditions given in the End User License Agreement ("EULA"), Legal Notices, Instructions, Warnings, Disclaimers, and all other text in "SECTION: 0" of "This Web Site" (HTML document and associated files) before reading or using any of the information, software programs, and or files, contained in, linked to, and or associated with, "This Web Site" (HTML document and associated files). Any use or "Beta Testing" of "This Web Site" constitutes your acknowledgment of your full agreement with the current End User License Agreement ("EULA") and your decision to have this current license supersede all prior and contemporaneous agreements and understandings. Information and files in "This Web Site" (HTML document and associated files) have been placed here so that long time users of "The Author's" programs DANCAD3D.COM (tm) , DANCAM.EXE (tm) , or DANPLOT.EXE (tm) could help proofread the text of the documentation files or screens displayed, and also help test data files, example files, and or any software programs that might be made available from time to time, to aid "The Author" in finding mistakes, bugs, and other errors, omissions, defects, mistakes, and faults. Everything in "This Web Site" (HTML document and associated files) is "Beta Test", "Beta Code", Experimental, Preliminary, requires proofreading, or is being evaluated for possible revision, and is NOT warranted to be free of defect. To help "The Author" report any bugs, foul-ups, defects, or mistakes that you find, see "SECTION: 8" for instructions. "This Web Site" (HTML document and associated files) and all other files and programs by Daniel H. Hudgins are made available "AS IS" without warranty of any kind express, expressed, or implied. All offers and specifications are subject to change or discontinuation without notice of any kind. Please read "SECTION: 8" of "This Web Site" (HTML document and associated files) before trying to contact "The Author."

SECTION: 4.20 is for some information and illustrations relating to example images of the various Display Modes that affect the way drawing elements are displayed.

The Perspective Display Modes relate to the way the lines and edges of the triangle elements are colored in and outlined. The Perspective Display Modes also control how line elements, triangle elements, or mixed elements will be processed for display.

See Section: 3.1.25.0 for a detailed discussion of issues relating to Perspective Display Modes, Printing Display Modes, and other issues related to this Section.

The Stereoscopic Display Modes relate to the way the right and left eye views will be formatted for display. Different stereoscopic viewing methods require different formatting of the two images, these formatting options are controlled through a code number. Various other values are associated with each formatting code number so as to optimize the display for each Stereoscopic Display Mode, and its relation to the particular elements being displayed. The Perspective Display Mode selected affects the appearance of the images used for the Stereoscopic Display Formatting, i.e. you can use all of the Perspective Display Modes with any of the Stereoscopic Display Modes giving a large variety of combinations, only some of which would be of interest generally.

See Section: 3.3.7.8 for a detailed discussion of issues relating to Stereoscopic Viewing Methods, Anaglyph glasses, and other issues related to this Section.

The modes available and the images they produce may be altered in other program revisions, so the images generated by the program version you have may not match the illustrations shown here. Variations in the code used in different program, revisions and versions can affect the results, so you should not expect the same results from different versions and revisions of the programs. The Author reserves the right to make any kind of changes at any time without notice.

Some Browsers may not display the larger size illustrations properly, so you may only be able to view the smaller sizes of each illustration. You should turn off the shrink-to-fit feature in your browser, if it has one, since that can distort or degrade the illustrations or make thin lines disappear.

Series 30 Perspective Display Modes includes modes within the range 30 through 39, although not all of the mode numbers in this range are in use as of the initial release of v3.7L. The different Perspective Display Mode code numbers control how triangle elements are displayed. Line elements are normally displayed using Perspective Display Mode code number 1 when all elements to be displayed are just line elements, and Perspective Display Mode code number 10 when mixed triangle and line elements need to be displayed at the same time. The Mutate command can be used to convert line elements into triangle elements so that some of the other Perspective Display Modes can be used to display the mutated line elements along with triangle elements.

Series 30 Perspective Display Modes look like Series 20 Perspective Display Modes in the 4 bpp video modes, so 8 bpp or better video modes should be used with Series 30 Perspective Display Modes.

Perspective Display Mode 30 fills the triangles with their line color and outlines the edges marked for display in Black. Perspective Display Mode 30 shades the whole triangle the same shade by depth, rather than shading the individual pixels within the triangle like modes in Series: 40, 50, 60, and 70.

Black outlines do not shade in the initial release of v3.7L so the state of the edge outline shading flag bit, i.e. the line attribute Equal or Tall attribute, does not affect the display in this mode. See Appendix N for more information about line attributes use with triangle elements.

Perspective Display Mode 30 is of limited utility, and would mostly be used to see the invisible edges of surface triangles while editing triangle elements.

Perspective Display Mode 31 fills the triangles with their line color and outlines the edges marked for display in the same color as the triangle fill color. Perspective Display Mode 30 shades the whole triangle the same shade by depth, rather than shading the individual pixels within the triangle like modes in Series: 40, 50, 60, and 70.

In order to see the edge outlines against the shaded triangles, you should set the triangle's line attribute to Equal pen tip shape, which flags the edge outlines to be plotted without shading, and therefore helps make the edge outlines contrast against the shaded triangles. Having the triangle's line attribute set to Tall pen tip shape flags the edge outlines to be plotted with shading, see Appendix N for more information about line attributes use with triangle elements. The selection of edge shading in Series 30 perspective display modes only applies to the 8 bpp video modes in v3.7L.

Perspective Display Mode 31 is of limited utility, and would mostly be used to see the invisible edges of surface triangles while editing triangle elements.

Since Perspective Display Mode 31 shades the edge lines in the VESA 15 bpp through 32 bpp modes in v3.7L, this example image was printed using the 8 bpp video mode, S1920C256 and re-sized, so that the edge lines would render un-shaded to give un-shaded yellow edges over shaded yellow triangles for some contrast on the edge lines.

Perspective Display Mode 32 fills the triangles with their line color and outlines the edges marked for display in White. Perspective Display Mode 32 shades the whole triangle the same shade by depth, rather than shading the individual pixels within the triangle like modes in Series: 40, 50, 60, and 70.

White outlines do shade in the initial release of v3.7L so the state of the edge outline shading flag bit, i.e. the line attribute Equal or Tall attribute, does affect the display in this mode. See Appendix N for more information about line attributes used in triangle elements. The selection of edge shading in Series 30 perspective display modes only applies to the 8 bpp video modes in v3.7L.

Perspective Display Mode 32 is of limited utility, and would mostly be used to see the invisible edges of surface triangles while editing triangle elements.

Perspective Display Mode 33 fills the triangles with their line color and outlines the edges marked for display in the complement of their line color, i.e. Yellow lines make Yellow fill with Blue outlines. Perspective Display Mode 32 shades the whole triangle the same shade by depth, rather than shading the individual pixels within the triangle like modes in Series: 40, 50, 60, and 70.

Complementary color outlines in colors that shade do shade in the initial release of v3.7L so the state of the edge outline shading flag bit, i.e. the line attribute Equal or Tall attribute, does affect the display of the edge outlines in this mode. See Appendix N for more information about line attributes used in triangle elements. The selection of edge shading in Series 30 perspective display modes only applies to the 8 bpp video modes in v3.7L.

Perspective Display Mode 33 is of limited utility, and would mostly be used to see the invisible edges of surface triangles while editing triangle elements.

Perspective Display Mode 34 fills the triangles with their line color without outlines of the edges marked for display. Perspective Display Mode 34 shades the whole triangle the same shade by depth, rather than shading the individual pixels within the triangle like modes in Series: 40, 50, 60, and 70.

Since this mode does not display edge outlines, the Equal or Tall line attribute does not affect the display of the edge outlines in this mode. See Appendix N for more information about line attributes used in triangle elements.

Perspective Display Mode 34 is of limited utility, and would mostly be used to see the invisible edges of surface triangles while editing triangle elements.