Changes between Initial Version and Version 1 of PHPMapscriptAddLayerQueryReproject

Timestamp:

Feb 8, 2009, 3:44:28 PM (15 years ago)

Author:

tomkralidis

Comment:

initial add

PHPMapscriptAddLayerQueryReproject

@@ +1 @@
+= Add Layer, Query and Reproject =
+
+Here's a small example which:
+
+ * opens a mapfile
+ * adds a new layer
+ * queries and new layer
+ * reprojects output map
+ * draws and saves to file
+
+
+Example based on http://dl.maptools.org/dl/omsug/osgis2004/php_mapscript_mum2.ppt in response to http://n2.nabble.com/Problems-with-MapScript-and-setProjection-tt2291579.html#none
+
+{{{
+<?php
+
+// load mapscript
+dl("php_mapscript.so");
+
+// add map
+$map = ms_newMapObj("config.map");
+
+// add new layer to map
+$layer = ms_newLayerObj($map);
+$layer->set("name", "foo");
+$layer->set("status", MS_ON);
+$layer->set("data", "path/to/file.shp");
+$layer->set("type", MS_LAYER_POINT);
+$layer->setProjection("init=epsg:4326");
+$layer->set("template", "ttt");
+$layer->set("dump", "true");
+
+// add new class to new layer
+$class = ms_newClassObj($layer);
+$class->set("name", "foo");
+
+// add new style to new class
+$style = ms_newStyleObj($class);
+$style->set("symbol", 2);
+$style->set("size", 8);
+$style->color->setRGB(255, 0, 0);
+
+// create new rect to query against the new layer
+$rect = ms_newRectObj();
+$rect->setExtent(-95, 40, -50, 60);
+
+// query new layer
+$layer->queryByRect($rect);
+
+// set projection of output map
+$map->setProjection("init=epsg:42304", MS_TRUE);
+// draw
+$image=$map->drawQuery();
+$image->saveImage("/tmp/out.png");
+
+?>
+}}}