Sorry, if not secret
I use for create kmz files ArcGIS functions. It is not best solutions.
You use WinAPI or other interface?

No, it is not secret.

I am using CGZiplibrary.dll. This library and the source code (VB6) are freely available at http://www.codeguru.com/vb/gen/vb_graphics/fileformats/article.php/c6743 .

There is a hint: you have to change a flag in the source code do make the library save relative path, not full path. If it saves the full path the .kmz will not work in GE. If you need more information let me know.

GE-Path - New version (1.3.0 ) available (18/April/2006)

Read kml file saved by Google Earth
Link the placemarks (simple or arrowed lines)
Add sequential numbers and/or append the coordinates to the placemark's names
Calculate distances between placemarks
Calculate route (bearing) to the next placemark
Add distances, routes and/or coordinates to the placemarks description
Draw horizontal and/or vertical grids (equally spaced or not)
Draw regular polygons around placemarks
Calculate path's length/perimeter
Calculate the area delimited by several placemarks (or by path waypoints)
Save the resulting kml file and export it to Google Earth

New features:

Fill polygons
Save and read text files
Copy from and export to Excel
Input data directly into de application
Sort and edit data
Preserve accents in place names and descriptions
New interface

Very good, Ricardo! You make very nice program!
Maybe you add next time ODBC connect to import?

Thank you Valery.

Yes, good suggestion. I have think in database connection before. Maybe in the next version.

I am trying to keep the development of GE-Graph and GE-Path as a weekend hobby aiming the people who use GE free just for fun. May be in the future I could think in develop a professional version.

It is also available today a new update (v 2.1.0) of GE-Graph.

Make bars graph
Make graph with geometrical shapes (circles, squares, triangles, etc).
Set the shape size according to each placemark value
Also set the shape color according to a placemark value
Graph's title and color scale as GE screen overlays
Different choice of label content (place name and/or value)
Different color scales to be chosen
Paste files from other applications (Word, Excel, Access,...)
Export data to Excel
Sort and filter placemark data (coordinates, names and value

New:

-Save file as kmz
Images for the color scale and graph title and the kml files are saved in a single zipped file

-Choose minimum and maximum values for color scale
If your input file is too large you can split it in several smaller files keeping the same color scale for each one.

-Transform values to square root

I am aware of complains that the new GE-Path version (1.3.0) is generating random path, not following the original waypoints sequence.

The new version can sort the data. So, if you click in the head row of the application's data grid, the data of the corresponding column will be sorted. The original data sequence will be lost.

Tthe path generated from sorted data will be a mess because GE-Path generates path according to the waypoint sequence of the data grid.

If you are using the application to generate path, to calculate distance or area, DON'T sort the data in the data grid.

(I thinking that it was not a good idea to include sort capability in this application.)

Edited:

Also if the user have, in he regional setting, the comma as decimal separator the generated path will be a mess

Why don't you add a field to the the table wich conserves the original order by numbering the points according to the original sequence. Then it would be possible to sort the Table again with this key and get the original order back.

xav

Thank you xav

<Why don't you add a field to the the table wich conserves the original order by numbering the points according to the original sequence. Then it would be possible to sort the Table again with this key and get the original order back.>

Yes, this could be a good solution.

Also I already have the necessary routines for restoring the original data.

They are used in the other application (GE-Graph), where you can filter data according to max and min values that you input. There is a button (Remove) that restores the original data.

I will think in both methods to see which one could be more efficiently implemented in GE-Path.

I will try to work in this weekend.

A must have tool - get it.