Survey of Geospatial uses in SketchUp
-
Hi Ryan,
It is a point grid where there is 10m space between each point. This means that 3000m x 3000m area I have 300 x 300 = 90 000 points. I think that it would be better to be able to select the point count by distance, for example 40m distance between each point. This would result: 3000m / 40m = 75 points => 75 x 75 points = 5625 points in total.
Miikka
-
Hi Miikka,
Assuming that all your point are in order, you could do the following:
- All a new column to your point attribute table as a a Whole number (ie: Temp)
- Start editing on the point layer and open the Field Calculator
- Check Update existing field and choose the new column you added
- Type the following code into the Expression textbox: ( $rownum-1 ) % 4 +1
- Click Ok
- Save and stop editing.
This will give you information that will allow you to select every 4th point. In the attribute table you can type 1 in the Look for textbox and choose the new added column from the dropdown and press Search. This will give you the 4th point in the attribute table. You can save this as a new point file and you will have a thinned out point later.
-
Thanks for the tip Ryan! I actually decided to do the reducing points in Excel.
-
No problem, glad you were able to get it done.
Advertisement