# HG changeset patch
# User Sascha L. Teichmann <sascha.teichmann@intevation.de>
# Date 1262169319 0
# Node ID 85f48e287fb3fcd296097833c4c9d1f8ae4ba3af
# Parent  da21c256a0bab925382562b9de3a2db9e0c1f3e3
Added configuration for vertical cross sections ("Profilschnitte")


gnv-artifacts/trunk@492 c6561f87-3c4e-4783-a992-168aeb5c3f6f

diff -r da21c256a0ba -r 85f48e287fb3 gnv-artifacts/ChangeLog
--- a/gnv-artifacts/ChangeLog	Tue Dec 29 14:54:17 2009 +0000
+++ b/gnv-artifacts/ChangeLog	Wed Dec 30 10:35:19 2009 +0000
@@ -1,3 +1,19 @@
+2009-12-30	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* doc/conf/conf.xml: Added section gnv/vertical-cross-section
+	  to configure the "Profilschnitte".
+	  <samples width="..." height="..."/> configures the size of
+	  the sample area. Defaults to 1024x768.
+	  <filters><filter>...</filter></filters> configures the
+	  list of post processing filters applied to the sample area 
+	  after the interpolation is done. Defaults to empty list.
+
+	* src/main/java/de/intevation/gnv/artifacts/context/GNVArtifactContext.java:
+	  Added keys for vertical cross section samples and filters.
+
+	* src/main/java/de/intevation/gnv/artifacts/context/GNVArtifactContextFactory.java:
+	  Parse the configuration for the new parameters.
+
 2009-12-29	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
 
 	* doc/conf/conf.xml: Added a gnv/horizontal-cross-section-profile
diff -r da21c256a0ba -r 85f48e287fb3 gnv-artifacts/doc/conf/conf.xml
--- a/gnv-artifacts/doc/conf/conf.xml	Tue Dec 29 14:54:17 2009 +0000
+++ b/gnv-artifacts/doc/conf/conf.xml	Wed Dec 30 10:35:19 2009 +0000
@@ -416,6 +416,15 @@
             <!-- This section configures the "horizontales Schnittprofil" -->
             <samples number="200"/>
         </horizontal-cross-section-profile>
+        <vertical-cross-section>
+            <!-- This section configures the "Profilschnitt" -->
+            <samples width="1024" height="768"/>
+            <filters>
+                <filter factory="de.intevation.gnv.raster.KernelFilter.GaussFactory" 
+                        sigma="1"
+                        radius="5"/>
+            <filters>
+        </vertical-cross-section>
     </gnv>
     <ehcache>
         <!--  In this Section the Path to Configurationfile for the EHCache,
diff -r da21c256a0ba -r 85f48e287fb3 gnv-artifacts/src/main/java/de/intevation/gnv/artifacts/context/GNVArtifactContext.java
--- a/gnv-artifacts/src/main/java/de/intevation/gnv/artifacts/context/GNVArtifactContext.java	Tue Dec 29 14:54:17 2009 +0000
+++ b/gnv-artifacts/src/main/java/de/intevation/gnv/artifacts/context/GNVArtifactContext.java	Wed Dec 30 10:35:19 2009 +0000
@@ -4,8 +4,11 @@
 package de.intevation.gnv.artifacts.context;
 
 import org.apache.log4j.Logger;
+
 import org.w3c.dom.Document;
 
+import java.awt.Dimension;
+
 import de.intevation.artifactdatabase.DefaultArtifactContext;
 
 /**
@@ -32,6 +35,15 @@
     public static final String PALETTES_KEY =
         "gnv.color.palettes";
 
+    public static final String VERTICAL_CROSS_SECTION_SAMPLES_KEY =
+        "gnv.vertical.cross.section.samples";
+
+    public static final Dimension DEFAULT_VERTICAL_CROSS_SECTION_SAMPLES =
+        new Dimension(1024, 768);
+
+    public static final String VERTICAL_CROSS_SECTION_FILTER_FACTORIES_KEY =
+        "gnv.vertical.cross.section.filter.factories";
+
     public GNVArtifactContext() {
         super();
         log.debug("GNVArtifactContext.Constructor");
diff -r da21c256a0ba -r 85f48e287fb3 gnv-artifacts/src/main/java/de/intevation/gnv/artifacts/context/GNVArtifactContextFactory.java
--- a/gnv-artifacts/src/main/java/de/intevation/gnv/artifacts/context/GNVArtifactContextFactory.java	Tue Dec 29 14:54:17 2009 +0000
+++ b/gnv-artifacts/src/main/java/de/intevation/gnv/artifacts/context/GNVArtifactContextFactory.java	Wed Dec 30 10:35:19 2009 +0000
@@ -12,6 +12,9 @@
 import java.util.Properties;
 import java.util.HashMap;
 import java.util.ArrayList;
+import java.util.Collections;
+
+import java.awt.Dimension;
 
 import org.apache.log4j.Logger;
 
@@ -29,6 +32,7 @@
 import de.intevation.gnv.artifacts.cache.CacheFactory;
 
 import de.intevation.gnv.raster.Palette;
+import de.intevation.gnv.raster.Filter;
 import de.intevation.gnv.raster.PaletteManager;
 
 import de.intevation.artifacts.ArtifactContextFactory;
@@ -68,6 +72,12 @@
     public final static String HORIZONTAL_CROSS_SECTION_PROFILE_SAMPLES =
         "/artifact-database/gnv/horizontal-cross-section-profile/samples/@number";
 
+    public final static String VERTICAL_CROSS_SECTION_SAMPLES =
+        "/artifact-database/gnv/vertical-cross-section/samples";
+
+    public final static String VERTICAL_CROSS_SECTION_FILTERS =
+        "/artifact-database/gnv/vertical-cross-section/filters/filter";
+
     /**
      * Constructor
      */
@@ -120,6 +130,8 @@
 
             configureHorizontalCrossSectionProfile(config, returnValue);
 
+            configureVerticalCrossSection(config, returnValue);
+
         } catch (FileNotFoundException e) {
             log.error(e, e);
         } catch (IOException e) {
@@ -130,6 +142,111 @@
         return returnValue;
     }
 
+    protected void configureVerticalCrossSection(
+        Document           config,
+        GNVArtifactContext context
+    ) {
+        log.info("configuration of vertical cross section");
+        configureVerticalCrossSectionSamples(config, context);
+        configureVerticalCrossSectionFilters(config, context);
+    }
+
+    protected void configureVerticalCrossSectionFilters(
+        Document           config,
+        GNVArtifactContext context
+    ) {
+        log.info("configuration of vertical cross section filters");
+
+        NodeList filters = Config.getNodeSetXPath(
+            VERTICAL_CROSS_SECTION_FILTERS);
+
+        ArrayList<Filter.Factory> filterFactories =
+            new ArrayList<Filter.Factory>();
+
+        if (filters == null) {
+            log.warn("no filters found");
+        }
+        else {
+            for (int i = 0, N = filters.getLength(); i < N; ++i) {
+                Element filterElement = (Element)filters.item(i);
+                String factoryName = filterElement.getAttribute("factory");
+                if ((factoryName = factoryName.trim()).length() > 0) {
+                    try {
+                        Class clazz = Class.forName(factoryName);
+                        Filter.Factory filterFactory =
+                            (Filter.Factory)clazz.newInstance();
+                        filterFactories.add(filterFactory);
+                    }
+                    catch (ClassNotFoundException cnfe) {
+                        log.error("filter class not found", cnfe);
+                    }
+                    catch (InstantiationException ie) {
+                        log.error("cannot instantiate filter factory", ie);
+                    }
+                    catch (IllegalAccessException iae) {
+                        log.error("cannot access filter factory", iae);
+                    }
+                    catch (ClassCastException cce) {
+                        log.error("not a filter factory class", cce);
+                    }
+                }
+                else {
+                    log.error("No factory name given");
+                }
+            }
+        }
+
+        log.info("number of filters: " + filterFactories.size());
+
+        context.put(
+            GNVArtifactContext.VERTICAL_CROSS_SECTION_FILTER_FACTORIES_KEY,
+            Collections.unmodifiableList(filterFactories));
+    }
+
+    protected void configureVerticalCrossSectionSamples(
+        Document           config,
+        GNVArtifactContext context
+    ) {
+        log.info("configuration of vertical cross section samples");
+
+        Element samples = (Element)Config.getNodeXPath(
+            VERTICAL_CROSS_SECTION_SAMPLES);
+
+        Dimension sampleSize = new Dimension(
+            GNVArtifactContext.DEFAULT_VERTICAL_CROSS_SECTION_SAMPLES);
+
+        if (samples == null) {
+            log.warn("no samples found");
+        }
+        else {
+            String widthString = samples.getAttribute("width");
+            if ((widthString = widthString.trim()).length() > 0) {
+                try {
+                    sampleSize.width = Math.max(1, Integer.parseInt(widthString));
+                }
+                catch (NumberFormatException nfe) {
+                    log.error("invalid value for width: '" + widthString + "'");
+                }
+            }
+            String heightString = samples.getAttribute("height");
+            if ((heightString = heightString.trim()).length() > 0) {
+                try {
+                    sampleSize.height = Math.max(1, Integer.parseInt(heightString));
+                }
+                catch (NumberFormatException nfe) {
+                    log.error("invalid value for height: '" + heightString + "'");
+                }
+            }
+        }
+        log.info("samples (width x height): " + 
+            sampleSize.width + " x " + sampleSize.height);
+
+        context.put(
+            GNVArtifactContext.VERTICAL_CROSS_SECTION_SAMPLES_KEY,
+            sampleSize);
+
+    }
+
     protected void configureHorizontalCrossSectionProfile(
         Document           config,
         GNVArtifactContext context