Tell me more ×
Geographic Information Systems Stack Exchange is a question and answer site for cartographers, geographers and GIS professionals. It's 100% free, no registration required.
up vote 3 down vote favorite
1

How can I read grid data (3 or 5 sources of grids) like slope, soil, cover, etc.?

My goal is to build a simulator based on multiple grid data for harvesting decisions.

share|improve this question

2 Answers

up vote 5 down vote

RasterToNumPyArray takes an input raster and returns you a numpy array that you could then work with.

myArray = arcpy.RasterToNumPyArray(out_curved_elev_raster)
share|improve this answer
up vote 1 down vote

Given a set of point features, you can extract multiple raster datasets using ExtractMultiValuesToPoints

share|improve this answer
Could you explain why point features might be relevant to a grid-based calculation? – whuber♦ Nov 17 '11 at 16:38
1  
Lately I've done a lot of reading of grid values at specific locations (model nodes) to extract geologic data to build the geometry for groundwater models. I guess my initial read of the post was that the OP was trying to accomplish something similar. – Jason Nov 17 '11 at 16:42
1  
Thank you for the clarification: now the potential relevance of your reply is evident (+1 for offering a different approach). (Modeling harvests, though, is not usually done with finite element, adaptive gridding, or analytical methods, unlike groundwater models. It usually comes down to operations on entire regular grids of squares, which are almost always best left in a logical grid format.) – whuber♦ Nov 17 '11 at 16:46
2  
Like I've always said, you learn something new about harvest modeling every day ;) – Jason Nov 17 '11 at 16:50

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.