Utilities VIs
Owning Palette: Digital Filter Design VIs and Functions
Installed With: Digital Filter Design Toolkit. This topic might not match its corresponding palette in LabVIEW depending on your operating system, licensed product(s), and target.
Use the Utilities VIs to retrieve the filter coefficients and and to create filters from the coefficients.
The VIs on this palette can return general LabVIEW error codes or specific digital filter design error codes.
| Palette Object | Description |
|---|---|
| DFD Build Filter from Cascaded Coef | Converts the IIR Filter Cluster output of the Advanced IIR Filtering VIs into a filter. |
| DFD Build Filter from Lattice Coef | Creates a filter from lattice form coefficients. |
| DFD Build Filter from Transfer Function | Creates a filter from a transfer function. |
| DFD Build Filter from Zero-Pole-Gain | Builds a filter using poles, zeroes, and gain values. |
| DFD Get Cascaded Coef | Converts a filter to an infinite impulse response (IIR) filter cluster that is compatible with the IIR Filter Cluster output in the Advanced IIR Filtering VIs. |
| DFD Get Lattice Coef | Retrieves the lattice form coefficients of a filter. The filter you specify must have a lattice form filter structure. |
| DFD Get Order | Retrieves the order of a filter. |
| DFD Get Transfer Function | Retrieves the transfer function of a filter. |
| DFD Get Zero-Pole-Gain | Retrieves the zeroes, poles, and gain (ZPK) of a filter. |
| DFD Load from File | Retrieves a filter from a file. You must manually select the polymorphic instance you want to use. |
| DFD Load from Text File | Retrieves a filter from a text file. |
| DFD Render Difference Equation | Draws the difference equation of a filter in a picture indicator. |
| DFD Render Transfer Function Equation | Draws the transfer function of a filter in a picture indicator. |
| DFD Render Zero-Pole-Gain Equation | Draws the zero-pole-gain equation of a filter in a picture indicator. |
| DFD Save to File | Saves a filter into a file. Wire data to the filter in input to determine the polymorphic instance to use or manually select the instance. Use the DFD Load from File VI to load the filter from the file. |
| DFD Save to Text File | Saves a filter to a text file in XML format. |