HorizontalGauge

HorizontalGauge displays a horizontal bar chart using the value of the specified attribute and the limits supplied to calculate the height of the bar.

Example:

<gauge>
    <name>t350temp</name>
    <type>HorizontalGauge</type>
    <x>549</x>
    <y>50</y>
    <w>160</w>
    <h>27</h>
    <min>0</min>
    <max>180</max>
    <initial>0</initial>
    <attribute>clt</attribute>
    <visible>1</visible>
    <colours>redred</colours>
    <outline>0</outline>
    <image>t350barchart.bmp</image>
    <blocksize>20</blocksize>
    <yscale>-1</yscale>
</gauge>

Attribute	Mandatory?	Value Type	Description
x	Yes	Integer	The x coordinate of the bottom left of the gauge
y	Yes	Integer	The y coordinate of the bottom left of the gauge
w	Yes	Integer	The width of the bar chart in pixels
h	Yes	Integer	The height of the bar chart in pixels
min	Yes	Integer	The minimum value of the attribute. This is used to set the zero width of the bar.
max	Yes	Integer	The maximum value of the attribute. This is used to set the full width position of the bar.
initial	Yes	Integer	The initial value to be used before any data is received from the ECU. In reality you will probably never see this value unless you have incorrectly specified the attribute.
attribute	Yes	String	The name of the attribute you want to base the gauge on
visible	No	Integer 1 or 0	Defines whether the bar is shown when the page is first loaded.
outline	No	Integer 1 or 0	Defines whether an outline rectangle should be drawn (with dimensions x,y,w,h) as well as the calculated bar width. Ignored if the “image” attribute is defined
alpha	No	Integer 0 to 255	Defines the opacity of the drawn bar, provided an image is not being used
colours	No	String	Specifies the colour of the bar. See the colour definitions page for further details
colours_script	No	String	Defines a script that can be used for determining the colour. For example, you might want a temperature bar to go red if the the temperature goes above a certain value. If the colours_script is defined, then the colours attribute is ignored
blocksize	No	Integer	The block size enables the bar chart to be split into chunks of pixels. This reduces its resolution so it doesn’t move around with small changes in the attribute’s value. Typically this is used for emulating older style displays that used LCD segments to light up bars in blocks. For example, a 200 pixel high bar with a block size of 20 would have 10 segments. The block size is typically used in conjunction with the background attribute to enable an image to be revealed in blocks, allowing a more accurate looking display than simply drawing a rectangle of a calculated height.
image	No	String	Name of the image that is to be used as the bar, instead of drawing rectangles.
xscale	No	Float	Scales the gauge width. Only useful if you are using an image and blocksize to draw the gauge
yscale	No	Float	Scales the gauge height. Only useful if you are using an image and blocksize to draw the gauge
rotation	No	Integer	Specifies a rotation angle for the gauge. You can make a horizontal gauge into a vertical gauge by rotating by 90 degrees.
shearx	No	Float	Specifies shearing in the x direction. This produces an italic effect. Negative values are allowed
sheary	No	Float	Specifies shearing in the y direction. Negative values are allowed.