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A component to simplify the process of drawing graphs and charts using a graphical LCD.
A component to simplify the process of drawing graphs and charts using a graphical LCD.


==Component Source Code==
==Detailed description==
 


Please click here to download the component source project: [https://www.flowcode.co.uk/wikicopy/componentsource/FC_Comp_Source_Lib_GLCD_Graph.fcfx FC_Comp_Source_Lib_GLCD_Graph.fcfx]


Please click here to view the component source code (Beta): [https://www.flowcode.co.uk/FlowchartView/?wfile=componentsource/FC_Comp_Source_Lib_GLCD_Graph.fcfx FC_Comp_Source_Lib_GLCD_Graph.fcfx]


==Detailed description==




Line 44: Line 42:


==Examples==
==Examples==




Line 89: Line 91:
* If Show Border is enabled then Width and Height should be as above plus 2 to account for the border pixels
* If Show Border is enabled then Width and Height should be as above plus 2 to account for the border pixels


==Macro reference==


{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
|-
| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]]
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''AddPoint'''
|-
| colspan="2" | Adds a new data point to the graph. 
|-
|-
| width="10%" align="center" | [[File:Fc9-s16-icon.png]] - INT
| width="90%" | Data
|-
| colspan="2" | Data Value to plot 
|-
| width="10%" align="center" | [[File:Fc9-u8-icon.png]] - BYTE
| width="90%" | Index
|-
| colspan="2" | Plot Index: Range 0-7 
|-
| width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9-void-icon.png]] - VOID
| width="90%" style="border-top: 2px solid #000;" | ''Return''
|}




{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
|-
| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]]
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''Initialise'''
|-
| colspan="2" | Initialises the graph object on the GLCD to the specified dimensions. 
|-
|-
| width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9-void-icon.png]] - VOID
| width="90%" style="border-top: 2px solid #000;" | ''Return''
|}








==Property reference==


{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
|-
| width="10%" align="center" style="background-color:#D8C9D8;" | [[File:Fc9-prop-icon.png]]
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''Properties'''
|-
|-
| width="10%" align="center" style="background-color:#EAE1EA;" | [[File:Fc9-conn-icon.png]]
| width="90%" style="background-color:#EAE1EA; color:#4B008D;" | Display Properties
|-
|-
| width="10%" align="center" | [[File:Fc9-type-16-icon.png]]
| width="90%" | LinkTo
|-
| colspan="2" | Graphical LCD Object to draw the graph on 
|-
| width="10%" align="center" | [[File:Fc9-type-7-icon.png]]
| width="90%" | ColourDisplay
|-
| colspan="2" | Automatically detects if the graphical LCD object is colour or monochrome 
|-
| width="10%" align="center" | [[File:Fc9-type-21-icon.png]]
| width="90%" | X Coord
|-
| colspan="2" | X coordinate for the top left of the graph container rectangle 
|-
| width="10%" align="center" | [[File:Fc9-type-21-icon.png]]
| width="90%" | Y Coord
|-
| colspan="2" | Y coordinate for the top left of the graph container rectangle 
|-
| width="10%" align="center" | [[File:Fc9-type-21-icon.png]]
| width="90%" | Width
|-
| colspan="2" | Horizontal size of the graph in pixels 
|-
| width="10%" align="center" | [[File:Fc9-type-21-icon.png]]
| width="90%" | Height
|-
| colspan="2" | Vertical size of the graph in pixels 
|-
| width="10%" align="center" style="background-color:#EAE1EA;" | [[File:Fc9-conn-icon.png]]
| width="90%" style="background-color:#EAE1EA; color:#4B008D;" | Graph Properties
|-
|-
| width="10%" align="center" | [[File:Fc9-type-16-icon.png]]
| width="90%" | Number Of Plots
|-
| colspan="2" | Determines the number of plots that can be displayed simultaneously on the graph. Monochrome displays can only support a single plot. 
|-
| width="10%" align="center" | [[File:Fc9-type-21-icon.png]]
| width="90%" | Number Of Points
|-
| colspan="2" | Number of data points the graph can store, multiplied by the number of plots. 
|-
| width="10%" align="center" | [[File:Fc9-type-7-icon.png]]
| width="90%" | Scrolling
|-
| colspan="2" | Controls how data is drawn onto the display. Scrolling is useful for slower data where you want a constant plot with the right hand side always being the latest data. None scrolling is useful for faster data such as audio snippets. 
|-
| width="10%" align="center" | [[File:Fc9-type-16-icon.png]]
| width="90%" | Graph Style
|-
| colspan="2" | Controls the graph draw style. Point - Draws a single point Line - Draws a line from the last point to the new point 
|-
| width="10%" align="center" | [[File:Fc9-type-14-icon.png]]
| width="90%" | Min Value
|-
| colspan="2" | Value to represent the bottom Y axis on the graph 
|-
| width="10%" align="center" | [[File:Fc9-type-14-icon.png]]
| width="90%" | Max Value
|-
| colspan="2" | Value to represent the top Y axis on the graph 
|-
| width="10%" align="center" | [[File:Fc9-type-7-icon.png]]
| width="90%" | Show Border
|-
| colspan="2" | Decides if a border for the graph is generated 
|-
| width="10%" align="center" | [[File:Fc9-type-16-icon.png]]
| width="90%" | Show Grid
|-
| colspan="2" | Decides if a X or Y grid is shown for the graph 
|-
| width="10%" align="center" style="background-color:#EAE1EA;" | [[File:Fc9-conn-icon.png]]
| width="90%" style="background-color:#EAE1EA; color:#4B008D;" | Theme
|-
|-
| width="10%" align="center" | [[File:Fc9-type-1-icon.png]]
| width="90%" | Background Colour
|-
| colspan="2" | Determines the graph background colour.  
|-
| width="10%" align="center" | [[File:Fc9-type-1-icon.png]]
| width="90%" | Plot 0 Colour
|-
| colspan="2" | Determines the graph plot colour.  
|}==Macro reference==


{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
 
==Macro reference==
 
===AddPoint===
{| class="mtx-class-macrotable wikitable"
|-
|-
| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]]
| width="10%" align="center" class="mtx-class-macrohead" | [[File:Fc9-comp-macro.png]]
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''AddPoint'''
| width="90%" class="mtx-class-macrohead" | '''AddPoint'''
|-
|-
| colspan="2" | Adds a new data point to the graph. 
| colspan="2" | Adds a new data point to the graph. 
Line 253: Line 127:




{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
===Initialise===
{| class="mtx-class-macrotable wikitable"
|-
|-
| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]]
| width="10%" align="center" class="mtx-class-macrohead" | [[File:Fc9-comp-macro.png]]
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''Initialise'''
| width="90%" class="mtx-class-macrohead" | '''Initialise'''
|-
|-
| colspan="2" | Initialises the graph object on the GLCD to the specified dimensions. 
| colspan="2" | Initialises the graph object on the GLCD to the specified dimensions. 
Line 264: Line 139:
| width="90%" style="border-top: 2px solid #000;" | ''Return''
| width="90%" style="border-top: 2px solid #000;" | ''Return''
|}
|}




==Property reference==
==Property reference==


{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
{| class="mtx-class-macrotable wikitable"
|-
|-
| width="10%" align="center" style="background-color:#D8C9D8;" | [[File:Fc9-prop-icon.png]]
| width="10%" align="center" class="mtx-class-macrohead" | [[File:Fc9-prop-icon.png]]
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''Properties'''  
| width="90%" class="mtx-class-macrohead" | '''Properties'''  
|-
|-
|-
|-
| width="10%" align="center" style="background-color:#EAE1EA;" | [[File:Fc9-conn-icon.png]]
| width="10%" align="center" class="mtx-class-propfolder" | [[File:Fc9-conn-icon.png]]
| width="90%" style="background-color:#EAE1EA; color:#4B008D;" | Display Properties
| width="90%" class="mtx-class-propfolder" | Display Properties
|-
|-
|-
|-
Line 310: Line 183:
| colspan="2" | Vertical size of the graph in pixels 
| colspan="2" | Vertical size of the graph in pixels 
|-
|-
| width="10%" align="center" style="background-color:#EAE1EA;" | [[File:Fc9-conn-icon.png]]
| width="10%" align="center" class="mtx-class-propfolder" | [[File:Fc9-conn-icon.png]]
| width="90%" style="background-color:#EAE1EA; color:#4B008D;" | Graph Properties
| width="90%" class="mtx-class-propfolder" | Graph Properties
|-
|-
|-
|-
Line 354: Line 227:
| colspan="2" | Decides if a X or Y grid is shown for the graph 
| colspan="2" | Decides if a X or Y grid is shown for the graph 
|-
|-
| width="10%" align="center" style="background-color:#EAE1EA;" | [[File:Fc9-conn-icon.png]]
| width="10%" align="center" class="mtx-class-propfolder" | [[File:Fc9-conn-icon.png]]
| width="90%" style="background-color:#EAE1EA; color:#4B008D;" | Theme
| width="90%" class="mtx-class-propfolder" | Theme
|-
|-
|-
|-
Line 367: Line 240:
|-
|-
| colspan="2" | Determines the graph plot colour.  
| colspan="2" | Determines the graph plot colour.  
|}==Macro reference==
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
|-
| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]]
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''AddPoint'''
|-
| colspan="2" | Adds a new data point to the graph. 
|-
|-
| width="10%" align="center" | [[File:Fc9-s16-icon.png]] - INT
| width="90%" | Data
|-
| colspan="2" | Data Value to plot 
|-
| width="10%" align="center" | [[File:Fc9-u8-icon.png]] - BYTE
| width="90%" | Index
|-
| colspan="2" | Plot Index: Range 0-7 
|-
| width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9-void-icon.png]] - VOID
| width="90%" style="border-top: 2px solid #000;" | ''Return''
|}
|}


==Component Source Code==


{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
Please click here to download the component source project: [https://www.flowcode.co.uk/wiki/componentsource/FC_Comp_Source_Lib_GLCD_Graph.fcfx FC_Comp_Source_Lib_GLCD_Graph.fcfx]
|-
| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]]
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''Initialise'''
|-
| colspan="2" | Initialises the graph object on the GLCD to the specified dimensions. 
|-
|-
| width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9-void-icon.png]] - VOID
| width="90%" style="border-top: 2px solid #000;" | ''Return''
|}


 
Please click here to view the component source code (Beta): [https://www.flowcode.co.uk/FlowchartView/?wfile=componentsource/FC_Comp_Source_Lib_GLCD_Graph.fcfx FC_Comp_Source_Lib_GLCD_Graph.fcfx]
 
 
==Property reference==
 
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
|-
| width="10%" align="center" style="background-color:#D8C9D8;" | [[File:Fc9-prop-icon.png]]
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''Properties'''
|-
|-
| width="10%" align="center" style="background-color:#EAE1EA;" | [[File:Fc9-conn-icon.png]]
| width="90%" style="background-color:#EAE1EA; color:#4B008D;" | Display Properties
|-
|-
| width="10%" align="center" | [[File:Fc9-type-16-icon.png]]
| width="90%" | LinkTo
|-
| colspan="2" | Graphical LCD Object to draw the graph on 
|-
| width="10%" align="center" | [[File:Fc9-type-7-icon.png]]
| width="90%" | ColourDisplay
|-
| colspan="2" | Automatically detects if the graphical LCD object is colour or monochrome 
|-
| width="10%" align="center" | [[File:Fc9-type-21-icon.png]]
| width="90%" | X Coord
|-
| colspan="2" | X coordinate for the top left of the graph container rectangle 
|-
| width="10%" align="center" | [[File:Fc9-type-21-icon.png]]
| width="90%" | Y Coord
|-
| colspan="2" | Y coordinate for the top left of the graph container rectangle 
|-
| width="10%" align="center" | [[File:Fc9-type-21-icon.png]]
| width="90%" | Width
|-
| colspan="2" | Horizontal size of the graph in pixels 
|-
| width="10%" align="center" | [[File:Fc9-type-21-icon.png]]
| width="90%" | Height
|-
| colspan="2" | Vertical size of the graph in pixels 
|-
| width="10%" align="center" style="background-color:#EAE1EA;" | [[File:Fc9-conn-icon.png]]
| width="90%" style="background-color:#EAE1EA; color:#4B008D;" | Graph Properties
|-
|-
| width="10%" align="center" | [[File:Fc9-type-16-icon.png]]
| width="90%" | Number Of Plots
|-
| colspan="2" | Determines the number of plots that can be displayed simultaneously on the graph. Monochrome displays can only support a single plot. 
|-
| width="10%" align="center" | [[File:Fc9-type-21-icon.png]]
| width="90%" | Number Of Points
|-
| colspan="2" | Number of data points the graph can store, multiplied by the number of plots. 
|-
| width="10%" align="center" | [[File:Fc9-type-7-icon.png]]
| width="90%" | Scrolling
|-
| colspan="2" | Controls how data is drawn onto the display. Scrolling is useful for slower data where you want a constant plot with the right hand side always being the latest data. None scrolling is useful for faster data such as audio snippets. 
|-
| width="10%" align="center" | [[File:Fc9-type-16-icon.png]]
| width="90%" | Graph Style
|-
| colspan="2" | Controls the graph draw style. Point - Draws a single point Line - Draws a line from the last point to the new point 
|-
| width="10%" align="center" | [[File:Fc9-type-14-icon.png]]
| width="90%" | Min Value
|-
| colspan="2" | Value to represent the bottom Y axis on the graph 
|-
| width="10%" align="center" | [[File:Fc9-type-14-icon.png]]
| width="90%" | Max Value
|-
| colspan="2" | Value to represent the top Y axis on the graph 
|-
| width="10%" align="center" | [[File:Fc9-type-7-icon.png]]
| width="90%" | Show Border
|-
| colspan="2" | Decides if a border for the graph is generated 
|-
| width="10%" align="center" | [[File:Fc9-type-16-icon.png]]
| width="90%" | Show Grid
|-
| colspan="2" | Decides if a X or Y grid is shown for the graph 
|-
| width="10%" align="center" style="background-color:#EAE1EA;" | [[File:Fc9-conn-icon.png]]
| width="90%" style="background-color:#EAE1EA; color:#4B008D;" | Theme
|-
|-
| width="10%" align="center" | [[File:Fc9-type-1-icon.png]]
| width="90%" | Background Colour
|-
| colspan="2" | Determines the graph background colour.  
|-
| width="10%" align="center" | [[File:Fc9-type-1-icon.png]]
| width="90%" | Plot 0 Colour
|-
| colspan="2" | Determines the graph plot colour.  
|}

Latest revision as of 14:36, 13 July 2026

Author Matrix TSL
Version 1.2
Category Graphical Library


GLCD Graph Creator component

A component to simplify the process of drawing graphs and charts using a graphical LCD.

Detailed description

No detailed description exists yet for this component

Examples

The graph creator component must be linked to the graphical LCD using the gLCD Object property.



The X Coord, Y Coord, Width and Height component properties set the size and position of the graph on the gLCD.


In the attached example the ADC component sets the input to the graph. Every 50ms a sample is taken and added to the graph.


Graph Creator Demo



Any size of graph can be created. For efficiency it is best to try and stick to the following rules.

  • The width should be equal to or a multiple of the number of points
  • The height should be equal to or a division of the input range - Min Value 0 to Max Value 255 = input range of 256
  • If Show Border is enabled then Width and Height should be as above plus 2 to account for the border pixels






Macro reference

AddPoint

AddPoint
Adds a new data point to the graph. 
- INT Data
Data Value to plot 
- BYTE Index
Plot Index: Range 0-7 
- VOID Return


Initialise

Initialise
Initialises the graph object on the GLCD to the specified dimensions. 
- VOID Return


Property reference

Properties
Display Properties
LinkTo
Graphical LCD Object to draw the graph on 
ColourDisplay
Automatically detects if the graphical LCD object is colour or monochrome 
X Coord
X coordinate for the top left of the graph container rectangle 
Y Coord
Y coordinate for the top left of the graph container rectangle 
Width
Horizontal size of the graph in pixels 
Height
Vertical size of the graph in pixels 
Graph Properties
Number Of Plots
Determines the number of plots that can be displayed simultaneously on the graph. Monochrome displays can only support a single plot. 
Number Of Points
Number of data points the graph can store, multiplied by the number of plots. 
Scrolling
Controls how data is drawn onto the display. Scrolling is useful for slower data where you want a constant plot with the right hand side always being the latest data. None scrolling is useful for faster data such as audio snippets. 
Graph Style
Controls the graph draw style. Point - Draws a single point Line - Draws a line from the last point to the new point 
Min Value
Value to represent the bottom Y axis on the graph 
Max Value
Value to represent the top Y axis on the graph 
Show Border
Decides if a border for the graph is generated 
Show Grid
Decides if a X or Y grid is shown for the graph 
Theme
Background Colour
Determines the graph background colour.  
Plot 0 Colour
Determines the graph plot colour.  

Component Source Code

Please click here to download the component source project: FC_Comp_Source_Lib_GLCD_Graph.fcfx

Please click here to view the component source code (Beta): FC_Comp_Source_Lib_GLCD_Graph.fcfx

Retrieved from "https://www.flowcode.co.uk/wiki/index.php?title=Component:_GLCD_Graph_Creator_(Graphical_Library)&oldid=47765"