diff options
| author | scuri <scuri> | 2008-10-17 06:10:33 +0000 |
|---|---|---|
| committer | scuri <scuri> | 2008-10-17 06:10:33 +0000 |
| commit | 7b52cc13af4e85f1ca2deb6b6c77de9c95ea0dcf (patch) | |
| tree | d0857278bde2eff784227c57dcaf930346ceb7ac /html/en/func/marks.html | |
First commit - moving from LuaForge to SourceForge
Diffstat (limited to 'html/en/func/marks.html')
| -rw-r--r-- | html/en/func/marks.html | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/html/en/func/marks.html b/html/en/func/marks.html new file mode 100644 index 0000000..b68db35 --- /dev/null +++ b/html/en/func/marks.html @@ -0,0 +1,85 @@ +<!doctype HTML PUBLIC "-//IETF//DTD HTML//EN"> +<html> + +<head> +<meta http-equiv="Content-Language" content="en-us"> +<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> +<title>Marks</title> +<link rel="stylesheet" type="text/css" href="../../style.css"> +</head> + +<body> + +<h2 align="center">Marks</h2> + + <p>A mark is a punctual representation. It can have different sizes and types. + All types are affected only by mark attributes and by the foreground color.</p> +<p>All marks in all drivers are simulated using other CD primitives, except +<strong>cdPixel</strong>.</p> + +<hr> +<pre class="function"><span class="mainFunction">void <a name="cdPixel">cdCanvasPixel</a>(cdCanvas* canvas, int x, int y, long int color); [in C]</span> +void wdCanvasPixel(cdCanvas* canvas, double x, double y, long int color); (WC) [in C] + +canvas:Pixel(x, y: number, color: lightuserdata) [in Lua] +canvas:wPixel(x, y: number, color: lightuserdata) (WC) [in Lua]</pre> + + <p>Configures the pixel <b>(x,y)</b> with the color defined by <b>color</b>. It is the smallest element of the canvas. It depends only + on global attributes of the canvas.</p> + +<pre class="function"><span class="mainFunction">void <a name="cdMark">cdCanvasMark</a>(cdCanvas* canvas, int x, int y); [in C]</span> +void wdCanvasMark(cdCanvas* canvas, double x, double y); (WC) [in C] + +canvas:Mark(x, y: number) [in Lua] +canvas:wMark(x, y: number) (WC) [in Lua]</pre> + + <p>Draws a mark in <b><b>(x,y)</b> </b>using the current foreground color. + It is not possible to use this function between a call to functions + <font><b>cdBegin</b></font> and <font><b>cdEnd</b></font> + if the type of mark is set to <b>CD_DIAMOND</b>. If the active driver + does not include this primitive, it will be simulated using other primitives + from the library, such as <strong><font>cdLine</font></strong>.</p> + <p>If you will call function <strong><font>cdMark</font></strong> + or <strong><font>wdMark</font></strong> several times in a + sequence, then it is recommended that the application changes the filling and + line attributes to those used by the <strong><font>cdMark</font></strong> + function:</p> + +<pre>cdInteriorStyle(CD_SOLID); +cdLineStyle(CD_CONTINUOUS); +cdLineWidth(1);</pre> + + <p>This will greatly increase this function's performance. Also in this case, + if the mark is very small, we suggest using the <font>cdPixel</font> + function so that the application itself draws the mark. In many cases, this + also increases this function's performance.</p> + +<h3>Attributes</h3> +<pre class="function"><span class="mainFunction">int <a name="cdMarkType">cdCanvasMarkType</a>(cdCanvas* canvas, int type); [in C]</span> + +canvas:MarkType(type: number) -> (old_type: number) [in Lua]</pre> + + <p>Configures the current mark type for: <b>CD_PLUS</b>, <b> + CD_STAR</b>, <b>CD_CIRCLE</b>, <b>CD_X</b>, <b> + CD_BOX</b>, <b>CD_DIAMOND</b>, <b>CD_HOLLOW_CIRCLE</b>, + <b>CD_HOLLOW_BOX</b> or <b>CD_HOLLOW_DIAMOND</b>. Returns + the previous value. Default value: <b>CD_STAR</b>. Value <b><b> + CD_QUERY</b> </b>simply returns the current value.</p> + <p align="center"><font size="4">Mark Types</font><br> + <img src="../../img/marks.gif" border="2" width="148" height="193"></p> + +<pre class="function"><span class="mainFunction">int <a name="cdMarkSize">cdCanvasMarkSize</a>(cdCanvas* canvas, int size); [in C]</span> +double wdCanvasMarkSize(cdCanvas* canvas, double size); (WC) [in C] + +canvas:MarkSize(size: number) -> (old_size: number) [in Lua] +canvas:wMarkSize(size: number) -> (old_size: number) (WC) [in Lua]</pre> + + <p>Configures the mark size in pixels. Returns the previous value. Default + value: 10. Value <b><b>CD_QUERY</b> </b>simply returns the current value. + Valid width interval: >= 1.</p> + <p>In WC, it configures the current line width in millimeters. </p> + + +</body> + +</html> |