Harvard University
Using printed maps and cross-section with gOcad
Introduction
The vast majority of large scale geologic and structural information is
available in form of printed maps and cross-sections. Mining these data
involves converting them to a digital format and assigning them the proper
spatial context. This process should preserve all geometric information
as well as all annotation information which is often equally valuable.
We address these problems by providing tools for properly registering printed
maps and cross-sections within the gOcad modelling environment. Using these
tools which are implemented as wizards it becomes straightforward to integrate
a scanned cross-section or map into a 3d model. This makes all of the gained
information directly accessible in their original spatial context.
Screenshots
(click
for full image, 8kb)
First screen of registration wizard. Specify the imported voxet and
type of coordinate input.
(click
for full image, 12kb)
It is possible to numerically specify coordinates.
(click
for full image, 9kb)
In addition to a horizontal scale, a vertical scale can be specified.
(click
for full image, 13kb)
In addition to the numerical entry of coordinates, it also possible
to digitize an existing map.
(click
for full image, 15kb)
A help screen.
Download
I prepared an archive which includes the wizards and example maps and sections.
The wizard probably runs only on gocad 1.5.X under unix because of issues
with tcl mode and cli syntax.
Download (free for academic use),
Comments
If you like this package and use it for your work, please contact
the author.
Enjoy,
A. Plesch
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