From 7b52cc13af4e85f1ca2deb6b6c77de9c95ea0dcf Mon Sep 17 00:00:00 2001 From: scuri Date: Fri, 17 Oct 2008 06:10:33 +0000 Subject: First commit - moving from LuaForge to SourceForge --- html/en/drv/dxf.html | 180 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 180 insertions(+) create mode 100644 html/en/drv/dxf.html (limited to 'html/en/drv/dxf.html') diff --git a/html/en/drv/dxf.html b/html/en/drv/dxf.html new file mode 100644 index 0000000..95274ee --- /dev/null +++ b/html/en/drv/dxf.html @@ -0,0 +1,180 @@ + + + + + + +CD_DXF + + + + + +

CD_DXF - AutoCAD Image Exchange File Driver (cddxf.h)

+ +

This driver allows generating an AutoCAD image exchange file. The file name usually has an extension .DXF. This + driver supports only AutoCAD version 10.0 or later. The format's copyrights are property of + Autodesk.

+ +

Use

+ +

The file is created and opened by calling function + cdCreateCanvas(CD_DXF, + Data), in which Data contains the file name and canvas dimensions. This function + opens the file and writes its header. Then, other functions in the CD library can be called as usual. The + Data parameter string has the following format:

+ + 
"filename [widthxheight] [resolution]"    or in C "%s %gx%g %g"
+ +

Only the parameter filename is required. The filename must be inside double quotes (") + if it has spaces. Width and height are provided in millimeters + (note the lowercase "x" between them), and their default value in pixels is INT_MAX for + both dimensions. Resolution is the number of pixels per millimeter; its default value is + "3.78 pixels/mm" (96 DPI). Width, height and + resolution are given in real values and are used only by + + cdCanvasGetSize and in pixel-millimeter conversion. 

+

Any amount of such canvases may exist simultaneously. It is important to note that a call to function + + cdKillCanvas is required to close the DXF file properly.

+

Images - The DXF format does not support client or server images and works with an indexed-color format + (color quality is limited to 256 fixed colors).

+

Precision of Coordinates - The primitives use coordinates in real numbers.

+

Layers - The format can work with several layers. It is necessary to draw the primitives of layer + '0' first, then layer '1' and so on. Use functions + Flush + to change the current layer.

+ +

Behavior of Functions

+

Control

+ +

Coordinate System and Clipping

+ +

Primitives

+ +

Attributes

+ +
+
+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
Font Mapping
CD FontsAutoCAD Fonts
SystemSTANDARD (sem arquivo)
CourierROMAN (romanc.shx)
Courier + CD_BOLDROMAN_BOLD (romant.shx)
TimesROMANTIC (rom_____.pfb)
Times + CD_BOLDROMANTIC_BOLD (romb_____.pfb)
HelveticaSANSSERIF (sas_____.pfb)
Helvetica + CD_BOLDSANSSERIF_BOLD (sasb____.pfb)
+
+
+

Colors

+ +

Client Images

+ +

Server Images

+ +

 

+ + + + -- cgit v1.2.3