diff flys-artifacts/src/main/java/de/intevation/flys/utils/ThemeUtil.java @ 5655:53a2ceeae9a3

Create floodmap colorrange dynamically from artifact parameters. Theme setting for colorrange classes is currently not functioning (wasn't before either).
author Christian Lins <christian.lins@intevation.de>
date Thu, 11 Apr 2013 11:25:41 +0200
parents dc0d37715e16
children
line wrap: on
line diff
--- a/flys-artifacts/src/main/java/de/intevation/flys/utils/ThemeUtil.java	Thu Apr 11 10:55:41 2013 +0200
+++ b/flys-artifacts/src/main/java/de/intevation/flys/utils/ThemeUtil.java	Thu Apr 11 11:25:41 2013 +0200
@@ -660,22 +660,35 @@
      * @param theme
      * @return String representation of the MapserverStyle
      */
-    public static String createDynamicMapserverStyle(Document theme) {
+    public static String createDynamicMapserverStyle(Document theme,
+            float from, float to, float step)
+    {
         MapserverStyle ms = new MapserverStyle();
 
         String strStartColor = XMLUtils.xpathString(theme, XPATH_WSPLGEN_STARTCOLOR, null);
         Color startColor = strStartColor != null ? parseColor(strStartColor) : new Color(178, 201, 215);
         String strEndColor = XMLUtils.xpathString(theme, XPATH_WSPLGEN_ENDCOLOR, null);
         Color endColor = strEndColor != null? parseColor(strEndColor) : new Color(2, 27, 42);
+/*
         String strNumClasses = XMLUtils.xpathString(theme, XPATH_WSPLGEN_NUMCLASSES, null);
-        int numClasses = strNumClasses != null ? Integer.parseInt(strNumClasses) : 5;
+        int numClasses;
+        if (strNumClasses != null) {
+            numClasses = Integer.parseInt(strNumClasses);
+        }
+        else {
+            numClasses = 5;
+            logger.warn("createDynamicMapserverStyle(): strNumClasses is null");
+        }
 
         if (numClasses < 5) {
             numClasses = 5;
         }
         else if (numClasses > 20) {
             numClasses = 20;
-        }
+        }*/
+
+
+        int numClasses = (int)((to - from) / step);
 
         float rd = (endColor.getRed()   - startColor.getRed())   / (float)numClasses;
         float gd = (endColor.getGreen() - startColor.getGreen()) / (float)numClasses;
@@ -689,7 +702,7 @@
             newColor.append(' ');
             newColor.append(startColor.getBlue()  + Math.round(n * bd));
 
-            String expr = createWSPLGENExpression(n + 1, numClasses);
+            String expr = createWSPLGENExpression(from + n * step, step, n + 1, numClasses);
 
             Clazz c = new Clazz(expr);
             Style s = new Style();
@@ -706,13 +719,12 @@
     }
 
 
-    protected static String createWSPLGENExpression(int idx, int maxIdx) {
+    protected static String createWSPLGENExpression(float val, float step, int idx, int maxIdx) {
         if (idx < maxIdx) {
-            int lower = idx - 1;
-            return "[DIFF] >= " + lower + " AND  [DIFF] < " + idx;
+            return "[DIFF] >= " + val + " AND  [DIFF] < " + (val + step);
         }
         else {
-            return "[DIFF] >= " + (maxIdx - 1);
+            return "[DIFF] >= " + val;
         }
     }
 

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