| <html> |
| <head> |
| <link rel="stylesheet" type="text/css" href="default.css" media="screen" /> |
| </head> |
| <body> |
| |
| <h2>Canvas</h2> |
| |
| <p> |
| With the help of a <code>GC</code> it is possible to draw on a |
| <code>Canvas</code> widget. |
| The usual functions like dots, lines, (rounded) rectangles, ovals, polylines, |
| arcs, text and images are supported. All shapes can be outlined or (when |
| closed) filled with any color and opacity. |
| </p> |
| |
| <p> |
| Try the example on the left. The controls at the bottom are: |
| </p> |
| |
| <dl> |
| <dt>Polyform</dt> |
| <dd> |
| Click on several points in the drawing area to draw a polyline. Close |
| and fill the shape by clicking on the starting point. |
| </dd> |
| <dt>Oval</dt> |
| <dd> |
| Click to define the center, click once more to define the radius. |
| </dd> |
| <dt>Stamp</dt> |
| <dd> |
| Click once to draw an image into the area. |
| </dd> |
| <dt>Transparency</dt> |
| <dd> |
| Draw semi-transparent shapes. |
| </dd> |
| <dt>Clear</dt> |
| <dd> |
| Clears the drawing area. |
| </dd> |
| </dl> |
| |
| </body> |
| </html> |
