From 31a6d25e22482085bf60512c1f2f2fcd33e2b107 Mon Sep 17 00:00:00 2001
From: Dane Springmeyer <dane@dbsgeo.com>
Date: Mon, 1 Nov 2010 18:57:44 +0000
Subject: [PATCH] fixup raster colorizer example, removing accidental previous
 changes from brainstorming session

---
 tests/data/good_maps/raster_symbolizer.xml | 139 +++------------------
 1 file changed, 20 insertions(+), 119 deletions(-)

diff --git a/tests/data/good_maps/raster_symbolizer.xml b/tests/data/good_maps/raster_symbolizer.xml
index 1360f02d8..fb3a35ab5 100644
--- a/tests/data/good_maps/raster_symbolizer.xml
+++ b/tests/data/good_maps/raster_symbolizer.xml
@@ -1,135 +1,36 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Map srs="+init=epsg:32630">
+<Map background-color="white" srs="+init=epsg:32630">
 
-  <Style name="elevation" >
+  <Style name="two-value" >
     <Rule>
-      <RasterSymbolizer opacity="10%"/ >
-      
-      
+      <RasterSymbolizer opacity="1" >
         <RasterColorizer>
-          <!-- range (interpolated) -->
-          <color max="100" fill="white" />
-          <! -- more like css? start/end-->
-          <gradient start="100" stop="400" start-color="red" stop-color="green"/>
+          <ColorBand value="0" color="yellow" label="&lt;0"></ColorBand>
+          <ColorBand value="26" color="purple" midpoints="1"></ColorBand>
+         </RasterColorizer>
+      </RasterSymbolizer>
+    </Rule>
+  </Style>
 
-          <gradient min="400" max="500" min_color="green" max_color="yellow"/>
-
-          <gradient>
-            <lower color="white">
-            <break color="red" value="100">
-            <break color="green" value="200">
-            <break color="yelow" value="400">
-            <upper color="transparent" value="500">
-          </gradient>
-
-          <gradient lower="white" upper="pink" method="breaks|steps|equal-interval|...">
-            <break color="red" value="100">
-            <break color="green" value="200">
-            <break color="yelow" value="400">
-          </gradient>
-
-          <!-- binning -->
-          <gradient lower="white" upper="pink" method="breaks|steps|equal-interval|...">
-            <break color="red" value="100">
-            <break color="green" value="200">
-            <break color="yelow" value="400">
-          </gradient>
-
-          <!-- gradient -->
-          <gradient lower="white" upper="pink" method="breaks|steps|equal-interval|...">
-            <break color="red" value="100">
-            <break color="green" value="200">
-            <break color="yelow" value="400">
-          </gradient>
-
-          <color min="520" fill="black" />
-
-          <!-- descrete -->
-          <apply|map|match min="12" max="12" color="red" />
-          <color min="50" max="50" fill="green" />          
-          <color min="500" max="520" fill="blue" />
-          
-          
-          <!-- take 122 -->
-          <discrete color="white" /> <!-- white <100 -->
-          <discrete color="red" value="100" /> <!-- red:green 100-200 -->
-          <gradient color="green" value="200" /> <!-- green:yellow 200-400 -->
-          <gradient color="yellow" value="400" />
-          <discrete color="black" /> <!-- black >=400 -->
-          
-        <RasterColorizer mode="linear" before="blue">
-          <stop color="red" value="100" /> <!-- 100-200 = red>green -->
-          <stop color="green" value="200" /> <!-- 200-400 = green>yellow -->
-          <stop color="yellow" value="400" />
-        </RasterColorizer>
-        <style>
-          #layer [band=1] {
-            raster-linear-gradient: blue, red 100, green 200, yellow 400;
-            
-            raster-discrete: transparent, green 100, yellow 200, black 400;
-          }
-        </style>
-          
-        <RasterColorizer mode="discrete" before="transparent"><!-- 0-100=alpha -->
-          <stop color="green" value="100" /> <!-- 100-200=green -->
-          <stop color="yellow" value="200" /> <!-- 200-400=yellow -->
-          <stop color="black" value="400" /> <!-- >=400=black -->
-          <stop value="450" /> <!-- >=450=transparent -->
-        </RasterColorizer>
-        <style>
-          #layer [band=1] {
-            raster-opacity:.5
-            raster-scaling: bilinear 1
-            raster-discrete: transparent, green 100, yellow 200, black 400;
-          }
-        </style>
-        
-        <RasterColorizer mode="exact">
-          <stop color="red" value="12" />
-          <stop color="green" value="122" />
-          <stop color="blue" value="123" />
-          <!-- every other color not drawn -->
-        </RasterColorizer>
-        <style>
-          #layer [value=12] {
-            raster-color: red;
-          }
-          #layer [value=122] {
-            raster-color: green;
-          }
-          #layer [value=123] {
-            raster-color: blue;
-          }
-          
-          /*implement filters for rasters in mapnik */
-          #layer [value<75][value>50] {
-            raster-color: pink;
-            raster-linear-gradient: pink, blue 60, black 90, brown 100;
-          }
-
-          #layer {
-            raster-opacity:.5
-            raster-scaling: bilinear 1
-          }
-
-          #layer {
-            raster-classes: red 12, green 122, blue 123;
-          }
-        </style>
-        
-        
+  <Style name="ramped" opacity=".7">
+    <Rule>
+      <RasterSymbolizer>
+        <RasterColorizer>
+          <ColorBand value="0" color="red" label="&lt;0"></ColorBand>
+          <ColorBand value="26" color="green" midpoints="100"></ColorBand>
+         </RasterColorizer>
       </RasterSymbolizer>
     </Rule>
   </Style>
 
   <Layer name="dataraster" srs="+init=epsg:32630">
-      <StyleName>elevation</StyleName>
+      <StyleName>ramped</StyleName>
       <Datasource>
-          <Parameter name="file">/Users/dane/projects/mapnik-dev/trunk/tests/data/raster/dataraster.tif</Parameter>
+          <!-- get stats on this file with gdalinfo ../raster/dataraster.tif -stats -->
+          <Parameter name="file">../raster/dataraster.tif</Parameter>
           <Parameter name="type">gdal</Parameter>
           <Parameter name="band">1</Parameter>
       </Datasource>
   </Layer>
 
-</Map>
-
+</Map>
\ No newline at end of file