Changeset 2627 for trunk/packages/vizservers/vtkvis

Timestamp:

Oct 14, 2011 9:26:55 AM (13 years ago)

Author:

ldelgass

Message:

Allow data range to be specified for legend. A range with min > max means to
use the computed range of the field. Not yet included in protocol command.

File:

• trunk/packages/vizservers/vtkvis/RpVtkRenderer.cpp (modified) (11 diffs)

trunk/packages/vizservers/vtkvis/RpVtkRenderer.cpp

@@ -299 +299 @@
 }
 
+/**
+ * \brief Get a list of DataSets this Renderer knows about
+ */
 void Renderer::getDataSetNames(std::vector<std::string>& names)
 {
@@ -357 +360 @@
 }
 
+/**
+ * \brief Set the active scalar field array by name for a DataSet
+ */
 bool Renderer::setDataSetActiveScalars(const DataSetId& id, const char *scalarName)
 {
@@ -394 +400 @@
 }
 
+/**
+ * \brief Set the active vector field array by name for a DataSet
+ */
 bool Renderer::setDataSetActiveVectors(const DataSetId& id, const char *vectorName)
 {
@@ -1062 +1071 @@
 }
 
+/**
+ * \brief Render a labelled legend image for the given colormap
+ *
+ * The field is assumed to be the active scalar or vector field
+ * based on the legendType.
+ *
+ * \param[in] id ColorMap name
+ * \param[in] dataSetID DataSet name
+ * \param[in] legendType scalar or vector field legend
+ * \param[in,out] title If supplied, draw title ("#auto" means to
+ * fill in field name and draw).  If blank, do not draw title.  
+ * If title was blank or "#auto", will be filled with field name on
+ * return
+ * \param[in,out] range Data range to use in legend.  Set min > max to have
+ * range computed, will be filled with valid min and max values
+ * \param[in] width Pixel width of legend (aspect controls orientation)
+ * \param[in] height Pixel height of legend (aspect controls orientation)
+ * \param[in] numLabels Number of labels to render (includes min/max)
+ * \param[in,out] imgData Pointer to array to fill with image bytes. Array
+ * will be resized if needed.
+ * \return The image is rendered into the supplied array, false is 
+ * returned if the color map is not found
+ */
 bool Renderer::renderColorMap(const ColorMapId& id, 
                               const DataSetId& dataSetID,
@@ -1103 +1135 @@
 }
 
-
+/**
+ * \brief Render a labelled legend image for the given colormap
+ *
+ * The field is assumed to be point data, if the field is not found
+ * as point data, cell data is used.
+ *
+ * \param[in] id ColorMap name
+ * \param[in] dataSetID DataSet name
+ * \param[in] legendType scalar or vector field legend
+ * \param[in] fieldName Name of the field array this legend is for
+ * \param[in,out] title If supplied, draw title ("#auto" means to
+ * fill in field name and draw).  If blank, do not draw title.  
+ * If title was blank or "#auto", will be filled with field name on
+ * return
+ * \param[in,out] range Data range to use in legend.  Set min > max to have
+ * range computed, will be filled with valid min and max values
+ * \param[in] width Pixel width of legend (aspect controls orientation)
+ * \param[in] height Pixel height of legend (aspect controls orientation)
+ * \param[in] numLabels Number of labels to render (includes min/max)
+ * \param[in,out] imgData Pointer to array to fill with image bytes. Array
+ * will be resized if needed.
+ * \return The image is rendered into the supplied array, false is 
+ * returned if the color map is not found
+ */
 bool Renderer::renderColorMap(const ColorMapId& id, 
                               const DataSetId& dataSetID,
@@ -1150 +1205 @@
  * \param[in] dataSetID DataSet name
  * \param[in] legendType scalar or vector field legend
+ * \param[in] fieldName Name of the field array this legend is for
+ * \param[in] type DataAttributeType of the field
  * \param[in,out] title If supplied, draw title ("#auto" means to
  * fill in field name and draw).  If blank, do not draw title.  
  * If title was blank or "#auto", will be filled with field name on
  * return
- * \param[out] range Filled with min and max values
+ * \param[in,out] range Data range to use in legend.  Set min > max to have
+ * range computed, will be filled with valid min and max values
  * \param[in] width Pixel width of legend (aspect controls orientation)
  * \param[in] height Pixel height of legend (aspect controls orientation)
@@ -1263 +1321 @@
     }
 
-    range[0] = 0.0;
-    range[1] = 1.0;
+    bool needRange = false;
+    if (range[0] > range[1]) {
+        range[0] = 0.0;
+        range[1] = 1.0;
+        needRange = true;
+    } 
 
     switch (legendType) {
     case LEGEND_VECTOR_MAGNITUDE:
-        if (cumulative) {
-            getCumulativeDataRange(range, fieldName, type, 3);
-        } else if (dataSet != NULL) {
-            dataSet->getDataRange(range, fieldName, type);
+        if (needRange) {
+            if (cumulative) {
+                getCumulativeDataRange(range, fieldName, type, 3);
+            } else if (dataSet != NULL) {
+                dataSet->getDataRange(range, fieldName, type);
+            }
         }
 
@@ -1284 +1348 @@
         break;
     case LEGEND_VECTOR_X:
-        if (cumulative) {
-            getCumulativeDataRange(range, fieldName, type, 3, 0);
-        } else if (dataSet != NULL) {
-            dataSet->getDataRange(range, fieldName, type, 0);
+        if (needRange) {
+            if (cumulative) {
+                getCumulativeDataRange(range, fieldName, type, 3, 0);
+            } else if (dataSet != NULL) {
+                dataSet->getDataRange(range, fieldName, type, 0);
+            }
         }
 
@@ -1300 +1366 @@
         break;
     case LEGEND_VECTOR_Y:
-        if (cumulative) {
-            getCumulativeDataRange(range, fieldName, type, 3, 1);
-        } else if (dataSet != NULL) {
-            dataSet->getDataRange(range, fieldName, type, 1);
+        if (needRange) {
+            if (cumulative) {
+                getCumulativeDataRange(range, fieldName, type, 3, 1);
+            } else if (dataSet != NULL) {
+                dataSet->getDataRange(range, fieldName, type, 1);
+            }
         }
 
@@ -1316 +1384 @@
         break;
     case LEGEND_VECTOR_Z:
-        if (cumulative) {
-            getCumulativeDataRange(range, fieldName, type, 3, 2);
-        } else if (dataSet != NULL) {
-            dataSet->getDataRange(range, fieldName, type, 1);
+        if (needRange) {
+            if (cumulative) {
+                getCumulativeDataRange(range, fieldName, type, 3, 2);
+            } else if (dataSet != NULL) {
+                dataSet->getDataRange(range, fieldName, type, 1);
+            }
         }
 
@@ -1333 +1403 @@
     case LEGEND_SCALAR:
     default:
-        if (cumulative) {
-            getCumulativeDataRange(range, fieldName, type, 1);
-        } else if (dataSet != NULL) {
-            dataSet->getDataRange(range, fieldName, type);
-         }
+        if (needRange) {
+            if (cumulative) {
+                getCumulativeDataRange(range, fieldName, type, 1);
+            } else if (dataSet != NULL) {
+                dataSet->getDataRange(range, fieldName, type);
+            }
+        }
 
         lut->SetRange(range);