2D to 3D Polyline by Text

This command allows you to change 2D polylines to 3D polylines by elevation labels.

This command will prompt you for samples of the elevation labels and the polylines to convert. The program uses these samples to know the layer names for the labels and linework to process. Then select all the polylines with their labels you want to convert.

You will then be prompted to enter in an elevation to add to label values. Often, elevations are abbreviated to save time and space. If every elevation in a drawing is in the 500s instead of labeling every elevation 539.97, 540.02, 540.11 sometimes, like in the example below, they are listed as 39.97, 40.02, 40.11. This command allows you to add a given amount, such as 500, to every label elevation to produce the correct elevation in the drawing.

This command will assign elevations from the labels to nearby vertices. If vertices do not have a nearby elevation label, then they will be interpolated from vertices that do have nearby elevation labels.

To decide how to apply the elevation text to the polyline, the routine computes the Center Point of the elevation text. Then the Nearest Vertex on the polyline to the elevation text Center Point is computed. Next the Center Point is projected onto the polyline to calculate the Projected Point. If the Center Pointer to Nearest Vertex distance is less than 2/3rd the Projected Point to Nearest Vertex distance then the Nearest Vertex is elevated base on the elevation text. Otherwise, a new vertex is inserted into the polyline at the Projected Point, and this new vertex is elevated based on the elevation text.

Prompts

Select sample of elevation text: pick a text label
Select sample of a polyline to convert: pick a polyline
Select polylines to convert and elevation labels.
Select objects: select all the entities to process
19 found, 19 total
Enter elevation to add to label values <0.00>: 500
Pre-processing entity #19 of 19
Processing elevation text #18
Remaking polyline #1

Pulldown Menu Location: 3D Data > 2D to 3D Polyline
Keyboard Command: elevfb
Prerequisite: 2D polyline and elevation labels