Welcome, Guest
Username: Password: Remember me
  • Page:
  • 1
  • 2

TOPIC: Sedimentary Map and Google earth overlay

Sedimentary Map and Google earth overlay 10 years 11 months ago #5471

  • Darkhorse
  • Darkhorse's Avatar
  • Offline
Fish ton did you work it out?? Let us know how you did it!!!
The administrator has disabled public write access.

Sedimentary Map and Google earth overlay 10 years 11 months ago #5472

  • Fishton
  • Fishton's Avatar
  • Offline
No, I need to be able to switch ShadedRelief data.
_________________
John Easton
www.fishtec.co.za
The administrator has disabled public write access.

Sedimentary Map and Google earth overlay 10 years 11 months ago #5473

  • dbuss
  • dbuss's Avatar
  • Offline
fjordfisher,

Could you explain how you created this raster?

The 4 pics show a result
Chart "Lowrance" is my standard raster: aerial photo with integrated raster overlay (colored depth areas), created in a GIS application.


Thanks
The administrator has disabled public write access.

Sedimentary Map and Google earth overlay 10 years 11 months ago #5475

  • Darkhorse
  • Darkhorse's Avatar
  • Offline
Can someone explain the difference between Vector, raster shaded relief and the different At5 folders ie: large xml!??? I am useless at understanding all that!??
The administrator has disabled public write access.

Sedimentary Map and Google earth overlay 10 years 11 months ago #5476

  • fjordfisher
  • fjordfisher's Avatar
  • Offline
Darkhorse - please read the manual + search function and You will find the answers:

reefmaster.com.au/reference/index.htm?contextid=10


bduss - do You mean, how i create a stepless zoomable raster as aerial photo outside Reefmaster?








(I would ever create the depth lines and the colored lake areas as vector overlay)
The only way i know for really high quality aerial photo raster are Global Mapper or ArcGIS.
Other GIS application can also create geotiff files, but i think not in such high resolution.

Do You have this programs?
For GM here You find a note:
reefmaster.com.au/index.php/forum/suppor...on-hds?start=12#3884

For ArcGIS i could give a small tip.

Important is the following figure:



The white areas symbolize an aerial (or other) background.
All geotiff files (or other geo formats) will be proceeded together in the IMC raster mode.
Last Edit: 10 years 11 months ago by fjordfisher.
The administrator has disabled public write access.

Sedimentary Map and Google earth overlay 10 years 11 months ago #5478

  • Fishton
  • Fishton's Avatar
  • Offline
I found out how to do this on the tackle fever forum.
_________________
John Easton
www.fishtec.co.za
The administrator has disabled public write access.

Sedimentary Map and Google earth overlay 10 years 11 months ago #5479

  • dbuss
  • dbuss's Avatar
  • Offline
fjordfisher,

I thought your lake image was a RM raster image merged with aerial. I now see your lake image is a vector map merged with aerial.

I am missing the steps on how to combine the two, like your Raster1 image.

I am using QGIS and RM, and assume that is done in QGIS(I am just learning QGIS)

How is the geotif of the vector map created?

Thanks for you help.

Dan

I have the following vector map and raster map.




The administrator has disabled public write access.

Sedimentary Map and Google earth overlay 10 years 11 months ago #5480

  • fjordfisher
  • fjordfisher's Avatar
  • Offline
No,

My aerial photo with the colored areas is a raster. You can load the vector area file into a GIS application, colorize this, fade out the lines, add an aerial photo as background and created this as geotiff file. Only my lines with depth labels are vector files!!!. You also can make this in QGIS (pic), but You can't get a really good result, because the export resolution is much to small. This in QGIS only make sense, if You have an small lake. As You self can see, that the quality is so high, that You belief, i use vector areas. My resolution from up to 600 dpi (or more) in ArcGIS or GM can make this possible.
In another, experimental case i have created a raster with 1.800 dpi resolution (only colored lake areas and for the land only the HDS background color no. 24, no aerial photos). It was unbelievably, but only one geotiff picture was necessary for this lake with about 6.000 ha surface!!! And You would belief - it's vector, but it's really raster!

The source geotiff files in my post here i created short after the IMC release. As i wrote: today i would ever create the depth lines and the colored lake areas only as vector overlay.
Attachments:
Last Edit: 10 years 11 months ago by fjordfisher.
The administrator has disabled public write access.

Sedimentary Map and Google earth overlay 10 years 11 months ago #5481

  • dbuss
  • dbuss's Avatar
  • Offline
Got it...

Now I can work on size, colors and quality.

Thanks for your help!
Dan


The administrator has disabled public write access.

Sedimentary Map and Google earth overlay 10 years 11 months ago #5482

  • fjordfisher
  • fjordfisher's Avatar
  • Offline
Fine. Happy mapping!

You can a bit compensate the resoultion problem with very much overlapping single geotiffs in the right, most used zoom levels.
The administrator has disabled public write access.
  • Page:
  • 1
  • 2
SCROLL TO TOP