Raptor:Table Interpolation 2D

Return to the main Raptor page

Return to Table Lookup page

Raptor™ Table Interpolation 2D

Description

The Raptor Table Interpolate 2d block is similar to the Matlab Interpolation Using Prelookup block. This block accepts two fractional indexes and uses them to output an interpolated value from the table data. The Raptor Table Axis block must be used to calculate the fractional indexes. To visualize the initial data in a matlab figure, select the block and then use the raptor_visualize_table() function from the command window.

Adaptive Tables

This block supports an adaptive table mode. When enabled, it allows the values in the table to be adjusted automatically at runtime. When the adaptive mode is enabled 3 additional inputs are displayed for controlling the table adaption. In 'Adapt between points' mode the block will always add the adapt quantity to the table. If the fractional indexes are <0.25 away from the nearest table point in both axis the entire adapt quantity will be added to that point in the table. If the fractional indexes are >0.25 from the nearest data point in one axis and <0.25 from the nearest data point in the other axis half the adapt quantity will be added to each data point. If the factional indexes are >0.25 away from the nearest data point in both axis then one quarter of the adapt quantity is added to 4 data points.

In 'Adapt near points' mode the block will only add the adapt quantity to the nearest table point if the fractional indexes are <0.25 from the nearest table point in both axis.

Inputs

Input	Type	Description
y index		Fractional index to use to interpolate into the table data.
x index		Fractional index to use to interpolate into the table data.
Adapt Min		The minimum value to adapt the table to. Only available when use adapt input is enabled.
Adapt Max		The minimum value to adapt the table to. Only available when use adapt input is enabled.
Adapt Quantity		The amount to adapt the table by. Only available when use adapt input is enabled.

Outputs

Output	Type	Description
output		The interpolated value from the table. Note: When table adaption is turned on, the table is adapted first, then interpolated.
Adapt Output		The amount that the table was interpolated by. This will be either 0, adapt quantity or adapt quantity/2. Only available when show adapt output is enabled.

Parameters

Parameter	Type	Description
Name	String	This is the name used to store the axis data. It is also used to identify the axis in the calibration tool.
Initial Value	Vector	This is the initial table data.
Data Type		Specifies the data type of the table data and output port.
Storage		Specifies the storage class of the table data.
Use Adapt Input		Enables the table to be adapted.
Adapt Mode		Controls how the table is adapted when in between data points.
Show Adapt Output		Enables the adapt output of the block.
Visible in Cal Tool		Controls the visibility of the table data in the calibration tool. When the interpolate block in visible in the cal tool. The driving Raptor Table Axis block must also be visible.
Gain	Number	This controls the scaling used to display the data in the cal tool. display value = (Gain * actual value) + Offset
Offset	Number	This controls the scaling used to display the data in the cal tool. display value = (Gain * actual value) + Offset
Max	Number	Sets the maximum value that can be set to any table data point in the calibration tool.
Min	Number	Sets the minimum value that can be set to any table data point in the calibration tool.
Format	Format String	Sets the display format to use in the calibration tool.
Unit Text	String	Sets the unit text that is displayed in the calibration tool.
Help Text	String	Sets the help text that is displayed in the calibration tool.
Access Level		Sets the access level of this item in the calibration tool.
Function	String	Sets the location where the variable appears in the calibration tool. Use raptor_xcp_function(gcb) to create a function based on the variables location in the model.