L3DT users' wiki
Large 3D terrain generator
Nav | start | plugins | calc | zeograph | filters | map_copyarea
 
Table of Contents

Map:CopyArea filter

Filter info

Description Copy an area (rectangle) of pixels from one map to another.
Author Aaron
Plugin ZG_map

Looks like

:plugins:calc:zeograph:filters:map_copyarea.png

Input pins

Name Type Default value Description
hSrc hvar N/A A handle to the source map.
sx0 int 0 The x-axis pixel coordinate, in the source map, of the left edge of the source rectangle to be copied.
sy0 int 0 The y-axis pixel coordinate, in the source map, of the lower edge of the source rectangle to be copied.
snx int 0 The width of the rectangle to be copied from the source map.
sny int 0 The height of the rectangle to be copied from the source map.
hDest hvar N/A A handle to the destination map.
dx0 int 0 The x-axis pixel coordinate, in the destination map, of the left edge of the destination rectangle.
dy0 int 0 The y-axis pixel coordinate, in the destination map, of the lower edge of the destination rectangle.

Pixel coordinates in L3DT are measured with the origin at the lower left corner of the map (i.e. pixel 0,0 is the lower left corner.)

Output pins

Name Type Description
hSrc hvar A handle to the source map (handle is passed through from input to output).
hDest hvar A handle to the destination map (handle is passed through from input to output).

Options

This filter has no options.

Comments

BitBlt

This filter is modelled on the BitBlt Win32 API function, with handles to device contexts replaced by handles to maps, and the raster operation fixed at SRCCOPY.

Heightfield:CombineMaps

For copying heightfield maps, users may prefer to use the Heightfield:CombineMaps filter with the operation option set to 'replace'. That filter provides more options for aligning the source/destination areas, including left/centre/right and top/centre/bottom.

 
plugins/calc/zeograph/filters/map_copyarea.txt · Last modified: 2017/08/31 04:20 (external edit)
 
Except where otherwise noted, content on this wiki is licensed under the following license:CC Attribution-Share Alike 3.0 Unported
Recent changes RSS feed Donate Powered by PHP Valid XHTML 1.0 Valid CSS Driven by DokuWiki