Density Map File

How to Create File

Density Map File can be created in the following ways.

• Create from Save Density Map dialog.
• Create from command line.

Content of Density Map File

The created Density Map File is described in the following format.

#Density Created by nebv VERSION (uid=UID) USER@HOSTNAME DATE
#COMMAND addDensityMap
#ARGS AREA="490.8,341.5,530.8,351.5"
#ARGS MESH_SIZE="10,10"
#ARGS OVERLAP_SIZE=0
#ARGS ORIGIN="Selected Area Lower-Left"
#ARGS CLIP_METHOD=Overhang
#xmin,ymin,xmax,ymax,rate,dimension[um^2]
490.8,341.5,500.8,351.5,0.012000,1.200000
500.8,341.5,510.8,351.5,0.150000,15.000000
510.8,341.5,520.8,351.5,0.100500,10.050000
520.8,341.5,530.8,351.5,0.037500,3.750000
530.8,341.5,540.8,351.5,0.037500,3.750000
            :
            :

#COMMAND is fixed to addDensityMap. This line to the next #COMMAND is treated as a single calculation result.

#ARGS describes the parameters used to calculate the result. #ARGS and the corresponding parameter are as follows.

Load Density Map File

Execute from Menu

Select Load Density Map File from the main menu to open Open Density Map File dialog.

Select a Density Map File and press OK. The density map described in the file is loaded and shown in screen and Calculation Panel.

Execute from Command Line

Specify --density-map-file-in option with a Density Map File at startup to load and display the density map described in the file on screen and Calculation Panel after startup.

$ nebv --density-map-file-in=/path/to/density_map_file.txt

See --density-map-file-in in Boot Options page.

Restrictions

• the #ARGS description may be missing if the Density Map File is created by older versions of nebv.
• When loading a Density Map File, the following restrictions apply:
  • Only files with all or none of the #ARGS can be loaded.
  • When files without #ARGS, the conditions are estimated from the density map in the file.
    • When Map Origin is (0, 0) and Clip Type is Overlap or Clip, it may be difficult to estimate.
  • Density Map File must include the calculation results of all mesh cells. Density Map Files created by using --density-map-rate-range option or --density-map-rate-diff option that contain only partial mesh information cannot be loaded.