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MultiStateImage

Display image reflecting input value

  • Library:
  • Simulink / Dashboard

Description

The MultiStateImage block displays an image to indicate the value of the input signal. You can use the MultiStateImage block with other Dashboard blocks to build an interactive dashboard of controls and indicators for your model. You can specify pairs of input values and images to provide the information you want during simulation.

Connecting Dashboard Blocks

Dashboard blocks do not use ports to connect to signals. To connect Dashboard blocks to signals in your model, use connect mode. Connect mode facilitates the process of connecting Dashboard blocks in your model, especially when you want to connect multiple blocks at once. If you only want to connect a single Dashboard block, you can also use the Connection table in the block dialog box to make the connection.

To enter connect mode, click the Connect button that appears above your unconnected Dashboard block when you pause on it.

In connect mode, when you select one or more signals or blocks, a list of parameters and signals available for connection appears. Select a signal or parameter from the list to connect the selected Dashboard block. To connect another Dashboard block, pause on the block and click the Connect button above it. Then, make a selection of signals and blocks in your model, and choose a signal or parameter to connect.

When you finish connecting the Dashboard blocks in your model, click the Exit button in the upper-right of the canvas to exit connect mode.

Limitations

  • Dashboard blocks can only connect to real scalar signals.

  • You cannot use the Connection table to connect a Dashboard block to a block that is commented out. When you connect a Dashboard block to a commented block using connect mode, the Dashboard block does not display the connected value until the you uncomment the block.

  • Dashboard blocks cannot connect to signals inside referenced models.

  • If you turn off logging for a signal connected to a Dashboard block, the model stops sending data from that signal to the block. To view the signal again, reconnect the signal.

Parameters

expand all

Select the signal to connect using the Connection table. Populate the Connection table by selecting signals of interest in your model. Select the radio button next to the signal you want to display. Click Apply to connect the signal.

Programmatic Use

Block Parameter: Binding
Type: Simulink.HMI.SignalSpecification
Default: []

Specify how to scale the image.

Fill with fixed Aspect Ratio scales the image to the size of the block while retaining its original aspect ratio.

Fixed displays the image with its fixed true size.

Fill adjusts the image to fill the block.

Programmatic Use

Block Parameter: ScaleMode
Type: string or character vector
Values: 'Fill with fixed aspect ratio' | 'Fixed' | 'Fill'
Default: 'Fill with fixed aspect ratio'

States match an image to display with a value of the connected variable or parameter. Each state consists of a State and an image, displayed as a Thumbnail in the States table for the MultiStateImage block.

  • State — Connected variable or parameter value that causes the MultiStateImage block to display the corresponding image.

  • Thumbnail — Image to display when the connected variable or parameter value matches the corresponding State.

Click the + button to add another state.

Programmatic Use

To programmatically configure State and Thumbnail parameter values for the MultiStateImage block, use the States parameter. Specify the value for the States parameter as an array of structures with the fields:

  • State — State value.

  • Size1-by-2 vector containing the width and height for the image in that order, in pixels, specified as a uint64.

  • Image — Character array of Base64 encoded image data.

  • Thumbnail — Character array of Base64 encoded image data for the thumbnail image to display in the States table in the block dialog.

Include a structure in the array for each state you want to specify for the block. In the example, the myBase64Image and myBase64Thumbnail variables contain character vectors of the Base64 image data for the block image and thumbnail..

state1.State = 1;
state1.Size = [uint64(400) uint64(400)];
state1.Image = myBase64Image;
state1.Thumbnail = myBase64Thumbnail;
state2.State = 2;
state2.Size = uint64(400) uint64(400)];
state1.Image = myBase64Image2;
state1.Thumbnail = myBase64Thumbnail2;
msiStates = [state1 state2];
Block Parameter: States
Type: structure array

The block displays the default image when the connected signal value does not correspond to any of the specified states. Specify the DefaultImage parameter as a structure containing the fields:

  • Size1-by-2 vector containing the width and height for the image in that order, in pixels, specified as uint64.

  • Image — Character array of Base64 encoded image data.

  • Thumbnail — Character array of Base64 encoded image data for the thumbnail image to display in the States table in the block dialog.

Block Parameter: DefaultImage
Type: structure

Position of the block label. When the block is connected to an element in the model, the label is the name of the connected element.

Programmatic Use

Block Parameter: LabelPosition
Type: character vector
Values: 'Top' | 'Bottom' | 'Hide'
Default: 'Top'

Block Characteristics

Data Types

Boolean | double | enumerated | fixed point | integer | single

Direct Feedthrough

no

Multidimensional Signals

no

Variable-Size Signals

no

Zero-Crossing Detection

no

Introduced in R2016b