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Diffstat (limited to 'html/en/func')
| -rw-r--r-- | html/en/func/wd.html | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/html/en/func/wd.html b/html/en/func/wd.html index eaef72d..938d19d 100644 --- a/html/en/func/wd.html +++ b/html/en/func/wd.html @@ -67,6 +67,34 @@ canvas:wCanvas2World(xv, yv: number) -> (xw, yw: number) [in Lua]</pre> <p>Converts canvas coordinates into world coordinates. It is not necessary to provide all return pointers, you can provide only the desired values and <font>NULL</font> for the others.</p> + + <pre class="function"><span class="mainFunction">void <a name="wdSetTransform">wdCanvasSetTransform</a>(cdCanvas* canvas, double sx, double sy, double tx, double ty); [in C]</span> + +canvas:wSetTransform(sx, sy, tx, ty: number) [in Lua]</pre> + <p>Configures the world coordinate system transformation to be used to + convert world coordinates (with values in real numbers) into canvas + coordinates (with values in integers). The transformation is automatically + set by <strong>wdCanvasWindow</strong> and <strong>wdCanvasViewport</strong>.</p> + <pre class="function"><span class="mainFunction">void <a name="wdGetTransform">wdCanvasGetTransform</a>(cdCanvas* canvas, double *sx, double *sy, double *tx, double *ty); [in C]</span> + +canvas:wGetTransform() -> (sx, sy, tx, ty: number) [in Lua]</pre> + <p>Queries the current transformation being used to + convert world coordinates into canvas coordinates (and the other way round). It + is not necessary to provide all return pointers, you can provide only the + desired values.</p> + + <pre class="function"><span class="mainFunction">void <a name="wdTranslate">wdCanvasTranslate</a>(cdCanvas* canvas, double dtx, double dty); [in C]</span> + +canvas:wTranslate(dtx, dty: number) [in Lua]</pre> + <p>Translates the transformation by a delta, by adding the given values to + the current tx and ty values.</p> + + <pre class="function"><span class="mainFunction">void <a name="wdScale">wdCanvasScale</a>(cdCanvas* canvas, double dsx, double dsy); [in C]</span> + +canvas:wScale(dsx, dsy: number) [in Lua]</pre> + <p>Scales the transformation by a delta, by multiplying the given values by + the current sx and sy values.</p> + <h3>Extra</h3> <pre class="function"><span class="mainFunction">void <a name="wdHardcopy">wdCanvasHardcopy</a>(cdCanvas *canvas, cdContext* ctx, void *data, void(*draw_func)(cdCanvas *canvas_copy)); [in C]</span> @@ -77,5 +105,6 @@ canvas:wCanvasHardcopy(ctx: number, data: string or userdata, draw_func: functio must use routines in WC) and, finally, removes the new canvas.</p> <p>It is usually used for "hard copies" of drawings (print equivalent copy). The most common used contexts are Printer, PS and PDF.</p> + </body> </html> |