Servis-Rhino 4211B Betriebsanweisung PDF herunterladen (Seite 218)

In addition to the value and range indicators, we also have the notion of a text indicator. This is

responsible for showing a piece of text in the gauge. This can be static or dynamically updated

based on the value or range. Like the other components, a TextIndicator can be added to a gauge

using the addElement() method.

Among the properties of the TextIndicator are:

• value - The text to be shown to the user.

• align – How the text is aligned. Options are:

◦ start

◦ middle

◦ end

• color – The color of the text.

• font – The font of the text.

• labelFunc – A function used to determine the value of the text.

• x – The "x" origin.

• y – The "y" origin.

Sample custom circular guage

We base our new widget upon dojox/dguages/CircularGuage.

Next we add elements to our gauge which can be CircularScale, TextIndicator or a drawing

function.

Sample custom rectangular guage

We base our new widget upon dojox/dguages/RectangularGuage.

Dojo GFX

GFX is a vector drawing package for Dojo.

The surface is the primary drawing area. Its size is defined when created but can later be changed

with the setDimensions(width, height) method.

Method Properties

createRect

x, y, width, height, r

createCircle

cx, cy, r

createEllipse

cx, cy, rx, ry

createLine

x1,y1,x2,y2

createPolyline

points

createPath

path

createImage

x, y, width, height, src

createText

x, y, text, align, decoration, rotated, kerning

createTextPath

path, text, align, decoration, rotated kerning

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