QtVlm Draw grib estimated road
By right-clicking on the map, on a boat or on a POI, you can get a contextual menu. One of the choices in this menu is "Draw a Grib esteem":
Two calculations can be selected and fashion mixed:
- An estimate with a constant wind angle (TWA)
- And with a constant heading estimation (loxodromic)
The start date can be Either:
- The current grib's date
- The date of the next shift.
On the screen shot method is set to TWA, and did start date is next vacation.
You can define up to 5 sections (Here the first TWA is set to 87 = 61 ° falling on vacations). The drwn esteem is on the map and you can choose to keep or not the POIs. In this case esteem is red Because a collision with coasts has-been detected.
This is really useful for testing different options and find the best one.