topic draw rectangle to clip layers using pythonaddin in Python Questions

draw rectangle to clip layers using pythonaddin

IbraheemKhan1 — Thu, 29 Nov 2012 04:50:24 GMT

I want to clip rasters in data view using interactive rectangle (to define Area of Interest) and add them to current dataframe. Following is a piece of code which is not returning anything. Any suggestions to correct it would be appreciative:

[HTML]import arcpy
import pythonaddins

def __init__(self):
    self.enabled = True
    self.cursor = 1
    self.shape = 'Rectangle'

def onRectangle(self, rectangle_geometry):
    """Occurs when the rectangle is drawn and the mouse button is released.
    The rectangle is a extent object."""

    extent = rectangle_geometry

    ras1 = arcpy.Clip_management(r"C:/temp/ras",
                                extent.XMin extent.YMin extent.XMax extent.YMax,
                                ras1, "#", "#", "NONE")
    arcpy.RefreshActiveView()
    return ras1[/HTML]

Re: draw rectangle to clip layers using pythonaddin

ArkadiuszMatoszka — Thu, 29 Nov 2012 07:50:22 GMT

Hi,
Corrected code for onRectangle below.
functions from management toolbox returns nothing so assignment like:

ras1 = arcpy.Clip_management

What is more function arcpy.Clip_management takes one string as second argument, not 4 floats.

def onRectangle(self, rectangle_geometry):         extent = rectangle_geometry         arcpy.Clip_management('D:\\DATA\\temp\\trans.tif', "%f %f %f %f" % (extent.XMin, extent.YMin, extent.XMax, extent.YMax), 'ras1', "#", "#", "NONE")         arcpy.RefreshActiveView()

Cheers.
Arek

Re: draw rectangle to clip layers using pythonaddin

IbraheemKhan1 — Thu, 29 Nov 2012 22:12:18 GMT

Thanks for suggestion but tool is unresponsive and nothing happens upon clicking it.

Re: draw rectangle to clip layers using pythonaddin

ArkadiuszMatoszka — Fri, 30 Nov 2012 06:26:13 GMT

Code was tested before I submitted it, and worked fine. Maybe problem lays somewhere else. Have you checked paths to files?
Does python window in arcmap shows any error message when you activate tool or using it?
Regards.

Re: draw rectangle to clip layers using pythonaddin

markdenil — Fri, 30 Nov 2012 12:18:54 GMT

In my (rather limited) experiance of Python Add-Ins, they simply don't always work.
The code will run as a toolbox tool...
It will run if fired off from the Python window...
But sometimes it just will not run consistantly from the blasted button.

Re: draw rectangle to clip layers using pythonaddin

IbraheemKhan1 — Sat, 01 Dec 2012 01:22:45 GMT

There is no error message. When i click on tool it simply don't fire. I am not sure where problem lies.