creating lasoverlap - DZ's differences between flight lines - specific color ramp

[Maros Hana]

Hi 

I need bit help crating DZ's with lasoverlap with specific specs and color ramp

I'm hoping to make the tiffs to look like the GeoCue DZ's, out put tiff, 

us survey feet 

0.0       ft white/intensity

0.0-0.1 ft green

0.1-0.2 ft yellow

0.2-0.3 ft orange

0.3-0.5 ft red

same scale for - below 

I am starting out with:

mkdir DZ_test

lasoverlap -survey_feet -i *.las -v -step 1 -fill 4 -no_over -otif -max_diff 2 -odir DZ_test

thank you!

Maros

[Martin Isenburg]

Hello,

good idea. I have added the '-color_bands' functionality to achieve this. It takes as arguments a list of (increasing) elevation differences followed by a hexadecimal color value. (just google "yellow rgb code" to find out the code for the color you want to assign). Anything just (!!!) over a listed elevation difference listed gets its corresponding color. Anything under remains white.

lasoverlap -i tile.laz -step 1 -color_bands 0.05 0xFF0000 -o overlap1c.png -no_over
lasoverlap -i tile.laz -step 1 -color_bands 0.05 0x00FF00 0.5 0xFF0000 -o overlap2c.png -no_over

lasoverlap -i tile.laz -step 1 -color_bands 0.05 0x00FF00 0.1 0xFFFF00 0.5 0xFF0000 -o overlap3c.png -no_over  

lasoverlap -i tile.laz -step 1 -color_bands 0.05 0x00FF00 0.1 0xFFFF00 0.25 0xFFA500 0.5 0xFF0000 -o overlap4c.png -no_over 

You can also use the '-bands' functionality without assigning colors. Then lasoverlap just picks some colors for you

lasoverlap -i tile.laz -step 1 -bands 0.05 -o overlap1.png -no_over
lasoverlap -i tile.laz -step 1 -bands 0.05 0.5 -o overlap2.png -no_over
lasoverlap -i tile.laz -step 1 -bands 0.05 0.1 0.5 -o overlap3.png -no_over   
lasoverlap -i tile.laz -step 1 -bands 0.05 0.1 0.25 0.5 -o overlap4.png -no_over 

This will be available in the next release. Until then you can play with this version here:

https://www.dropbox.com/s/33vri21nbcy9hgn/lasoverlap.exe

Regards,

Martin

--
Download LAStools at
http://lastools.org
http://rapidlasso.com
Be social with LAStools at
http://facebook.com/LAStools
http://twitter.com/LAStools
http://linkedin.com/groups/LAStools-4408378
Manage your settings at
http://groups.google.com/group/lastools/subscribe
---
You received this message because you are subscribed to the Google Groups "LAStools - efficient tools for LiDAR processing" group.
To unsubscribe from this group and stop receiving emails from it, send an email to lastools+u...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/lastools/82aa5bb7-0aee-4e85-aa7a-ed8d3e99da70%40googlegroups.com.

[Maros Hana]

Hi

LasOverlap - DZ Flightline help needed

I would need some help fine-tuning the DZ output to match GeoCue output - if anyone has an idea please let me know - I attached the Geocue image and the current LasTools one

also the line with single coverage does not have any image footprint - having this may be helpful. There is also obviously bad flight line crossing the road in the NE corner

thanks so much 

Current LasTools script:

mkdir overlap_custom_diff

lasoverlap -i *.las -v -step 1 -color_bands 0.1 0x00FF00 0.2 0xFFFF00 0.3 0xFFA500 0.5 0xFF0000 -no_over -otif -max_diff 0.5 -odir overlap_custom_diff

I am looking for flagging anything worse than 0.2 ft

0.0       ft white/intensity - having sigle coverage line visible

0.0-0.1 ft green

0.1-0.2 ft yellow

0.2-0.3 ft orange

0.3-0.5 ft red

Maros