Contour maps depict spatially-varying values, such as elevation, by means of curves of equal value.
3
votes
0answers
224 views
How to contour irregular point data for overlay on Google maps?
I am having some serious trouble finding a solution to fit my current needs. I am attempting to create contour maps from irregularly spaced point-data on the fly to overlay on a Google map. I have ...
2
votes
0answers
89 views
Best method to convert CSV file of lat/lon and depth data to bathymetry polygon?
I'm trying to create bathymetry polygons based on lat/long and depth data. I have tried several methods and the resulting polygons are clunky.
Make XY Event Layer-->Copy Features--> Project-->
...
2
votes
0answers
50 views
Applying depth to Shapefile
Apologies if this question has been answered before.
I'm digitizing a historic coastline and would like to add a single depth figure to it in order to merge it with a current contour model. Is there ...
2
votes
0answers
425 views
Dynamic Contour generation and project on google maps
Is it possible to generate contour map layer at runtime and overlap or project on google maps.
I am using google map api v3 and want to generate contour map layer using data from sql server and ...
1
vote
0answers
58 views
Arrow flow lines from a contour map
using QGIS (or even GRASS) is it possible to label a contour lines shape with arrows that indicate the flow direction?
Briefly: I have a point shape with elevation values. I make an interpolation map ...
1
vote
0answers
57 views
How calculate areas between certain contour lines in qgis?
Sorry for asking a question which I found in similar ways already here, but I am trying this for days and just got no result:
How do I calculate the area between certain contour lines (e.g. 0-800, ...
1
vote
0answers
172 views
How to clip the contour map with the polygon using R software?
Hi I am wondering how can I create the contour lines from the discrete x, y and z dataset and then add the shapefile to cut the contour lines by polygon.
I want to clip the contour map by the shape ...
