I am a beginner with Python coding and would required assistance with building Python Addin with TOOL class and utilising
def onRectangle(self, rectangle_geometry)
I have created a toolbar with Python Addin where I have added several button and tools.
From the class SetINVISIBLE_TOOL(object):
I want to use the def onRectangle(self, rectangle_geometry):
so when the tool is used, the user must draw a rectangle to select a single point from a prescribed layer.
If the selection count == 1;
then the selected point will be set to invisible
I have tried a few things but can not find a solution.
One option the script run with no errors but nothing happen and no selection is made
Second option raise an error.
See below details of my code:
class SetINVISIBLE_TOOL(object):
"""Implementation for StructureEditing_V1_addin.tool_2 (Tool)"""
def __init__(self):
self.enabled = True
self.cursor = 3
self.shape = "Rectangle" # Can set to "Line", "Circle" or "Rectangle" for interactive shape drawing and to activate the onLine/Polygon/Circle event sinks.
def onRectangle(self, rectangle_geometry):
"""Occurs when the rectangle is drawn and the mouse button is released.
The rectangle is a extent object."""
# Select points from the layer: Primary Structure Symbol (RED) which intersect with the extent rectangle
mapdoc = arcpy.mapping.MapDocument("CURRENT")
dfSTR = arcpy.mapping.ListDataFrames(mapdoc,"DEVELOPMENT (TEST) DATABASE")[0]
userExtent = rectangle_geometry
#ext = dfSTR.extent
blackprimSTR = arcpy.mapping.ListLayers(mapdoc,"Primary Structure Symbol (BLACK)",dfSTR)[0]
a = arcpy.Array()
a.add(userExtent.lowerLeft)
a.add(userExtent.lowerRight)
a.add(userExtent.upperLeft)
a.add(userExtent.upperRight)
a.add(userExtent.lowerLeft)
thepoly = arcpy.Polygon(a)
thepolyLyr = arcpy.MakeFeatureLayer_management(thepoly)
# boxAsFeature = arcpy.Polygon(arcpy.Array(rectangle_geometry)) not working
# arcpy.SelectLayerByLocation_management(blackprimSTR, "Intersect", boxAsFeature, 0, "New_Selection")
arcpy.SelectLayerByLocation_management(blackprimSTR,"INTERSECT",thepoly,"","NEW_SELECTION") #Option 1 tool: run but nothing happen
arcpy.SelectLayerByLocation_management(blackprimSTR,"INTERSECT",thepolyLyr,"","NEW_SELECTION") #Option 2: Error is raise on this line
arcpy.RefreshActiveView()
# if selected point count == 1, run the rest of the script
selCount = int(arcpy.GetCount_management(blackprimSTR)[0])
if selCount == 1:
# Set the the select point to be invisisble i.e. calc OUTPUT_SCALE = 10 (and SECONDARY_OUTPUT_SCALE = 10 if necessary)
if TIGER_PROD.ST_STRUCTURE_READING.SECONDARY_OUTPUT_SCALE == 25:
arcpy.CalculateField_management(in_table="Symbols shown on map (BLACK)\Primary Structure Symbol (BLACK)", field="TIGER_PROD.ST_STRUCTURE_READING.SECONDARY_OUTPUT_SCALE", expression="10", expression_type="VB", code_block="")
arcpy.CalculateField_management(in_table="Symbols shown on map (BLACK)\Primary Structure Symbol (BLACK)", field="TIGER_PROD.ST_STRUCTURE_READING.OUTPUT_SCALE", expression="10", expression_type="VB", code_block="")
Your help is appreciated
Gen
