topic Re: I'm a student and I need a python script that i can use for ArcMap in Python Questions

I'm a student and I need a python script that i can use for ArcMap

PhilipKegels — Wed, 12 Nov 2014 19:48:54 GMT

i'm a student and I need a python script that i can use for ArcMap

"A developer is looking for 10 lots for residential property development. Conditions to which the land to be acquired must satisfy:

Uncultivated ?

Located in a residential zone or residential expansion Conditions to which the land to be acquired should preferably meet:

Surface area per plot: between 500 and 700 m²

The plots are located at: o minimum distance of 2.0 km from any form of industrial

o maximum distance of 2.0 km from recreation

o maximum distance of 500 m from park or forest

o maximum distance of 3 km from a regional road

Is there any one that can help me?!

Thx

Re: I'm a student and I need a python script that i can use for ArcMap

Zeke — Wed, 12 Nov 2014 19:51:54 GMT

Maybe show what you've got so far, then get help for that.

Re: I'm a student and I need a python script that i can use for ArcMap

DanPatterson_Retired — Wed, 12 Nov 2014 19:54:47 GMT

Homework is helped when the "what I have tried" is provided...or when the due date has passed.

Re: I'm a student and I need a python script that i can use for ArcMap

PhilipKegels — Wed, 12 Nov 2014 19:58:04 GMT

I don't know how to begin on it. I already did it in ArcMap. I have already over the 10 lots (picture).

Now, i have to write a script that i can use for ArcMap and just put different conditions.

Re: I'm a student and I need a python script that i can use for ArcMap

PhilipKegels — Wed, 12 Nov 2014 20:00:40 GMT

I've been working eight days on it for research. My teacher has just placed an order and we had to look up everything on ourselfs.

Re: I'm a student and I need a python script that i can use for ArcMap

ChrisDonohue__GISP — Wed, 12 Nov 2014 21:20:57 GMT

Ooof. Sounds like you are a grad student.

Unfortunately, using Python in ArcGIS is not something that is learned immediately, so if you haven't had an opportunity to study it before, hopefully you have some time before this project is due.

One potential solution - if you know Modelbuilder at all, you can create your analysis process there, then export the whole thing as a Python Script. Given that your analysis criteria don't appear to be too complex, this could work out well. For the most part you would not have to learn Python, as Modelbuilder will create the code for you.

Modelbuilder (in general):

http://help.arcgis.com/en/arcgisdesktop/10.0/help/index.html#//002w00000001000000

Exporting Modelbuilder to a Python Script

http://resources.arcgis.com/en/help/main/10.1/index.html#//002w00000031000000

Chris Donohue, GISP

Re: I'm a student and I need a python script that i can use for ArcMap

DanPatterson_Retired — Wed, 12 Nov 2014 22:05:28 GMT

To add to Chris's suggestion...If you go to the Results window in the Geoprocessing section...the workflow that you used for tools in ArcToolbox will be saved, whether they were successful or not. you can reconstruct your workflow by exporting python snippets. These can be used to generate a script directly by filling in the blanks...it can be used to verify the output from Modelbuilderbuilder to Python and other purposes. Good luck

Re: I'm a student and I need a python script that i can use for ArcMap

DanPatterson_Retired — Sat, 11 Dec 2021 21:08:34 GMT

Here is a quick example...

Step 1, select the Results in Geoprocessing option
2...select the day that you did something that worked (or failed)
3 select the Arctoolbox tool used
4 copy to a python snippet to give you the bare bones python syntax to build a standalone script or to verify Modelbuilder script output

ie below is the output below for two processes...but it isn't ready to run standalone...that is the next lesson...


# Replace a layer/table view name with a path to a dataset (which can be a layer file) or create the layer/table view within the script
# The following inputs are layers or table views: "AOI_demo"
arcpy.RepairGeometry_management(in_features="AOI_demo",delete_null="DELETE_NULL")


# Replace a layer/table view name with a path to a dataset (which can be a layer file) or create the layer/table view within the script
# The following inputs are layers or table views: "AOI_mtm9"
arcpy.DefineProjection_management(in_dataset="AOI_mtm9",coor_system="PRO .......

Re: I'm a student and I need a python script that i can use for ArcMap

PhilipKegels — Wed, 12 Nov 2014 22:26:43 GMT

Thanks a lot! I Will try it tomorrow! keep you posting!

Re: I'm a student and I need a python script that i can use for ArcMap

PhilipKegels — Wed, 12 Nov 2014 22:30:22 GMT

THanks a lot! The thing is that using modelbuilder is forbidden So i have to do iT only with python. Using ArcMap is not That difficult bUT to write a script that do the same thing is not That easy i think. Keep you posting. I hope tomorrow i will be a step further.

Re: I'm a student and I need a python script that i can use for ArcMap

JohannesBierer — Thu, 13 Nov 2014 06:29:11 GMT

Since when students make what teachers say? Never heared that 🙂

What faculty forbid the use of model builder? And if it's like that, you can use it nevertheless ... if you have finished, it's easy to change the cody so that it doesn't looks model builder alike.

That's what I would do ...

Re: I'm a student and I need a python script that i can use for ArcMap

DanPatterson_Retired — Thu, 13 Nov 2014 10:50:57 GMT

Philip

I have produced a demo workaround to the use of modelbuilder on my blog. This is part 1. Part 2 of the blog will be completed over the weekend ... hope this gives you some idea.

The pdf document there will give you the generic workflow for a particular task. Your task would be to emulate it with your requirements.

The next instalment will show how to incorporate arcpy's mapping module within a workflow as either a substitute or an enhancement to general ArcToolbox tools

Regards
Dan

Re: I'm a student and I need a python script that i can use for ArcMap

ChrisDonohue__GISP — Thu, 13 Nov 2014 16:47:00 GMT

Dan:

This is a nice summary in your blog. I didn't know about the Python Code Snippet function - that will be handy. Thanks for posting that.

Chris Donohue, GISP

Re: I'm a student and I need a python script that i can use for ArcMap

PhilipKegels — Thu, 13 Nov 2014 17:46:28 GMT

Dan, thanks a lot!!!!

Please, can you sent me an email: philipkegels@hotmail.com -> If you want, i sent you my data. Maybe you can watch at it?

When I open a blank map --> there is no current session.

Thx!!!

Re: I'm a student and I need a python script that i can use for ArcMap

DanPatterson_Retired — Thu, 13 Nov 2014 18:23:12 GMT

Chris...more to come...you can tie in the arcpy.mapping module with this as well. Should be done over the weekend at the latest since I will be using this amongst my examples for a class next week...

Re: I'm a student and I need a python script that i can use for ArcMap

DanPatterson_Retired — Thu, 13 Nov 2014 18:24:16 GMT

Philip... because of demands I can't look at individual cases. The current session is the one that is open when you open arcmap

Re: I'm a student and I need a python script that i can use for ArcMap

JohannesBierer — Fri, 14 Nov 2014 06:51:19 GMT

Philip, I think Dan still did a lot for you, he could do it easiliy. But it's your work to learn it, if you want to reach his skills 🙂

By the way, I would be interested to hear about your instructors reasons why you should't use model builder?

Could you ask him?

Maybe he's here inside and could enlight me?

Re: I'm a student and I need a python script that i can use for ArcMap

DanPatterson_Retired — Sun, 16 Nov 2014 23:54:27 GMT

Just in case the assignment isn't due yet, I have posted another installment on my blog You are not allowed to use geoprocessing results the students get smarter Enjoy
Dan