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Use the GPS heat map in AC-Graph

The GPS heat map maps parameter values onto a recorded route with color. It can show where speed, temperature, or any other available signal changed during the drive.

Create and apply a heat map​

  1. Sign in to Qualifier.
  2. Open AC-Graph by clicking the AC-Graph icon on the Vehicles, Events, or DTC Manager page.
  3. Click the Media tab in the left panel.
  4. Click the gear icon on the map.
  5. Click the Heat Map tab.
  6. Turn on Apply heat map.
  7. Select a parameter.
  8. Set your value ranges and colors.
  9. Click Save.

Save a configuration as a template​

A template preserves the ranges and colors for reuse with comparable data.

The heat map template controls

To save one, once your ranges and colors are set:

  1. Turn on Template to open the template menu.
  2. Enter a name and description.
  3. Click Save.

To use one:

  1. Turn on Template to open the template menu.
  2. Click Open Existing.
  3. Click the template you want.
  4. Click Open.

The ranges and colors apply to the route on screen.

Color mapping​

Color mapping decides how values translate into what you see on the route.

Hue spreads a range of colors across the values. Use it when you want to pick out variation along the route.

A route colored with a hue range

Alpha uses a single color and varies its opacity. Use it when you want a simpler, calmer picture.

A route colored with alpha intensity