topic Create point with mouse click in Python Questions

Create point with mouse click

PacoAlverez — Sun, 12 Dec 2021 07:13:42 GMT

I am attempting to learn python so please bare with me. I would like to create points with a mouse click. I have the following code from another post but it's not working i am getting the following error. at this point i would like to just create one point but after i get past this code i would like to be able to click anywhere and create multiple points. Can some one help me out with this code?

Traceback (most recent call last):

File "C:\GIS\AddPoint.py", line 17, in <module>

cursor.insertRow(row)

TypeError: sequence size must match size of the row

Failed to execute (Script).

#import modules  
import arcpy  

point = arcpy.GetParameterAsText(0)  #click
An = "AnimalPoints" #target point feature class Animal Sightings
  
for prow in arcpy.da.SearchCursor(point,'SHAPE@XY'):        
    x,y = prow[0]      
del prow  
   
point1 = arcpy.Point(x, y)  
ptGeometry = arcpy.PointGeometry(point1)

with arcpy.da.InsertCursor(An,('SHAPE@XY')) as cursor:
    cursor.insertRow(row)

Re: Create point with mouse click

DarrenWiens2 — Sun, 12 Dec 2021 07:13:44 GMT

You need to fill the fields passed in the cursor initiation statement. Because SHAPE@XY is tuple, you must fill that tuple when you call insertRow. See the second code sample here.

with arcpy.da.InsertCursor(An,('SHAPE@XY')) as cursor: 
    cursor.insertRow((x,y))

As a side question, how are you planning to capture a click event as text? Is this a Python add-in? It may be possible, I've just never seen this.

Re: Create point with mouse click

PacoAlverez — Thu, 23 Jul 2015 22:30:23 GMT

I have made changes to my code that you suggested but i get the same error. i am not sure what you mean by "capture a click event as text?" basically just click on the map where coyotes are spotted and create points for now but eventually add more to the code. yes at some point it would be made into an pathon add-in. The link you posted for the sample is not working.

File "C:\GIS\AddPoint.py", line 17, in <module>

cursor.insertRow((x,y))

TypeError: sequence size must match size of the row

Re: Create point with mouse click

DarrenWiens2 — Thu, 23 Jul 2015 22:45:24 GMT

Oh, you've listed 'SHAPE@XY' (itself a tuple), inside another tuple. Try:

cursor.insertRow(((x,y)))

... or remove the parentheses around 'SHAPE@XY'.

Re: Create point with mouse click

PacoAlverez — Thu, 23 Jul 2015 22:54:23 GMT

I have tried both suggestions but i get the same error.

Re: Create point with mouse click

FreddieGibson — Thu, 23 Jul 2015 23:05:25 GMT

Are you trying to create a script tool that allows you to dynamically click on the map to create points as part of the gp tool's UI? If so, have you tried setting your input parameter type to Feature Set?

Using the interactive feature and record input controls

http://desktop.arcgis.com/en/desktop/latest/analyze/executing-tools/using-the-interactive-feature-and-record-input-con.htm

Otherwise are you needing to implement a tool where you can wire into the OnMouseDown Event?

Creating a Python add-in tool

http://desktop.arcgis.com/en/desktop/latest/guide-books/python-addins/creating-an-add-in-tool.htm

Re: Create point with mouse click

PacoAlverez — Thu, 23 Jul 2015 23:15:57 GMT

Thanks for the input, very interesting in deed. At this point i have it in a script in a tool box. Yes my input parameter type is set to Feature Set. after getting the code to run i will most likely look into making it a add-in.

Re: Create point with mouse click

FreddieGibson — Thu, 23 Jul 2015 23:20:24 GMT

Are you wanting to parse the values from the feature set and insert them into another feature class with the same coordinate system?

Re: Create point with mouse click

DarrenWiens2 — Sun, 12 Dec 2021 07:13:47 GMT

Won't pretend to understand why this works and my previous suggestion didn't, but this seems to work:

>>> with arcpy.da.InsertCursor(An,['SHAPE@XY']) as cursor:
...    cursor.insertRow([(x,y)])

Re: Create point with mouse click

WesMiller — Sun, 12 Dec 2021 07:13:50 GMT

Freddie Gibsonmakes a good point you may want to start your code with something like below just to make sure your in the same spatial reference.

mxd = arcpy.mapping.MapDocument("CURRENT")
df = arcpy.mapping.ListDataFrames(mxd)[0]
dfsr = df.spatialReference
fcsr = arcpy.Describe(An).spatialReference
if dfsr.name == fcsr.name:
    """Now do your work"""

Re: Create point with mouse click

PacoAlverez — Fri, 24 Jul 2015 14:57:05 GMT

No i am not just want to create features on a feature class and at some point get features from another feature class and import those features into the new point.

Re: Create point with mouse click

PacoAlverez — Sun, 12 Dec 2021 07:13:52 GMT

Wes thank you i will incorporate that into the code. Also how would i create multiple points and actually have them created to the feature class?

I would like to populate the POINT_X AND POINT_Y when the point is created.

i have add to my code to try to get the x,y populated but i get an error, i am thinking it's a syntax error.

File "C:\GIS\Python\AddPoint\AddPoint.py", line 24, in <module>

cursor.insertRow(row_value)

TypeError: sequence size must match size of the row

#import modules  
import arcpy  

arcpy.env.qualifiedFieldNames = False
An = "AnimalPoints" #target point feature class Animal Sightings

mxd = arcpy.mapping.MapDocument("CURRENT")  
df = arcpy.mapping.ListDataFrames(mxd)[0]  
dfsr = df.spatialReference  
fcsr = arcpy.Describe(An).spatialReference  
if dfsr.name == fcsr.name:  
    """Now do your work"""  

point = arcpy.GetParameterAsText(0)  #click

for prow in arcpy.da.SearchCursor(point,'SHAPE@XY'):        
    x,y = prow[0]      
del prow  

row_value = ([(x,y)])

with arcpy.da.InsertCursor(An,('POINT_X', 'POINT_Y','SHAPE@XY')) as cursor:
    cursor.insertRow(row_value)

Re: Create point with mouse click

WesMiller — Fri, 24 Jul 2015 15:22:02 GMT

You need to make row_value = something before you can create the row. Insert Row will accept either a list or tuple. You'll need to set row_value in the order of your field list ['POINT_X', 'POINT_Y','SHAPE@XY']

Re: Create point with mouse click

PacoAlverez — Fri, 24 Jul 2015 15:41:01 GMT

i am do that here am i not?

row_value = (x,y)

Re: Create point with mouse click

WesMiller — Fri, 24 Jul 2015 15:51:57 GMT

That is the tuple for Shape@XY

it should be

row_value = [x,y,(x,y)] or something similar

Re: Create point with mouse click

PacoAlverez — Fri, 24 Jul 2015 15:58:46 GMT

Got it, thank you.