3D polyline files
A 3D polyline file contains the definitions of all 3D points that make up all of the 3D polylines in a 3D polyline group. These files have an .epl extension and may be referred to as "EPL files".
Each line contains the definition of a single 3D point which consists of the following fields, separated by commas:
|
Field |
Units |
Description |
|
Date |
yyyy-MM-dd |
The date the 3D point. See note below. |
|
Time |
HH:mm:ss |
The time the 3D point. See note below. |
|
Milliseconds |
milliseconds |
Millisecond part of the time 3D point (0..999). See note below. |
|
Latitude |
degrees |
Latitude of the 3D point. |
|
Longitude |
degrees |
Longitude of the 3D point. |
|
Depth |
meters |
Depth of the 3D point. |
|
Intensity |
- |
A value associated with each 3D point which you can use to represent a measure of your choice. Aside from location and time each 3D point has this one value in which to store such a measure. It can be used to color the 3D point in a scene, and is visible on the General page of the 3D Object Properties dialog box. |
|
Segment number |
- |
(optional) A number which groups 3D points into a 3D polyline. Each file can contain any number of 3D polylines, each uniquely identified by the Segment number. Together they form a 3D polyline group. Note: With each 3D polyline the Segment number must increase. |
Note: In an EPL file, the time fields as a block are optional for 3D polylines. In the file, either all the 3D polylines have values for the time fields or alternatively all the 3D polylines have no time values.
Example file
The following describes the format of a valid .epl file.
1999-05-14,23:09:59,0,42.50142478,14.50023414,100,-100,0
1999-05-14,23:10:00,0,42.50151478,14.50023423,120,-80,0
1999-05-14,23:10:01,0,42.50160478,14.50023459,140,-60,0
1999-05-14,23:10:02,0,42.50169478,14.50023543,160,-40,0
1999-05-14,23:10:03,0,42.50178478,14.50023684,180,-20,1
1999-05-14,23:10:04,0,42.50187478,14.50023909,200,0,1
1999-05-14,23:10:05,0,42.50196478,14.50024233,220,20,1
1999-05-14,23:10:06,0,42.50205478,14.50024674,240,40,1
1999-05-14,23:10:07,0,42.50214478,14.50025252,260,60,1
1999-05-14,23:10:08,0,42.50223478,14.50025979,280,80,4
1999-05-14,23:10:09,0,42.50232478,14.50026879,300,100,4
1999-05-14,23:10:10,0,42.50241478,14.50027968,320,120,4
1999-05-14,23:10:11,0,42.50250478,14.50029264,340,140,4
1999-05-14,23:10:12,0,42.50259478,14.50030785,360,160,4
1999-05-14,23:10:13,0,42.50268478,14.50032549,380,180,4
See also
About 3D polylines
Importing 3D polylines
Viewing 3D Object properties