Path display

       The function of the control is to draw the corresponding graphic elements point, line, arc, circle, etc.

       The relevant addresses used by this control are all internal registers LB or LW addresses

Path display general dialog box

Ø  Foreground color, border color, background color, Visibilitiy style reference "bit button"

Ø  Path definition area: path correlation element definition area, data specific meaning reference chapter finally "path definition zone address description"

Ø  The drawing trigger bit: the address data of the bit address starts drawing, the address data is off

Ø  Remove the trigger bit: the address data is cleared for on

Ø  Select function: select the current drawing graph to display the relevant information

l  By bitability: whether to enable the selection function, the default address is off, and the selected function is enabled. The bits address data is on. close the selected function

l  Select report data type: select report data store type as needed

l  study report receiving area: set report receiving area for choosing store address, specific meaning refer to the last of this chapter "report receiving area for choosing address"

l  Search radius (pixel) : sets the search radius

l  Cursor color: sets the cursor color

Ø  notice：

l  signal：

Position: enable the function of selecting points, select a point in the current drawing graph, this option will be triggered, and set the notification bit as the specified state. The notification bit shall be manually reset to normally monitor the status of subsequent notification of selecting points

Pulse: enable the function of selecting points, select a point in the current drawing graph, this option will be triggered, and set the notification bit to ON, and the notification bit will be automatically reset

Notification bit: sets the order and the address to be notified when the pulse function is triggered

Path definition area address description：

Path definition area: specify the drawing parameter address of the path display in the following format. Take the address LW0 address as an example. The data meaning is as follows

Word number	instructions
LW0	The number of path elements in the path
LW1~LW8	Information about the first path element in the definition
LW9~LW16	Information about the second path element in the definition
...	...
LW（8n-7）~LW（8n）	The NTH path element in the definition

      

Index of related elements: point, line, arc, circle, thickness, color

point：

Word	Mnemonics	Describe
LW1	type	The point code is 0
LW2	color	color
LW3	x	X coordinate of point
LW4	y	Y coordinate of point
LW5~LW8	(keep)	Now is zero

line：

Word	Mnemonics	Describe
LW1	type	The code for the line is 1
LW2	color	color
LW3	X1	Starting point x coordinate
LW4	Y1	Starting point Y coordinate
LW5	X2	End point X coordinate
LW6	Y2	End point Y coordinate
LW7	style	Style type: 0: Don't show 1:  The solid line 2:  Dotted line 3:  Point, line 4:  Virtual - point line 5:  Virtual dot dot line 6 Or on the: The solid line
LW8	(keep)	Now the 0

The circular arc（Draws counterclockwise from the start point to the end point）：

Word	Mnemonics	Describe
0	type	The arc code is 2
1	color	color
2	X	Center X coordinates
3	Y	Center Y coordinate
4	X1	Starting point X coordinate
5	Y1	Starting point Y coordinate
6	X2	End point X coordinate
7	Y2	End point Y coordinate

round：

Word	Mnemonics	Describe
0	type	The circle code is 3
1	color	color
2	X	Center X coordinates
3	Y	Center Y coordinate
4	r	Circle radius
5~7	(keep)	Now is zero

The thickness of the（Affects subsequent elements until the next thickness appears）：

Word	Mnemonics	Describe
0	type	Thickness code 8
1	(keep)	Now is zero
2	The thickness of the	Thickness of stroke.Unit: pixel
3~7	(keep)	Now is zero

The usual color value is：

color	The numerical（Hexadecimal data）
black	0x0000
blue	0x0010
green	0x0400
cyan	0x0410
red	0x8000
magenta	0x8010
brown	0x8400
gray	0xc618
Dark grey	0x8410
Light blue	0x001f
Light green	0x07e0
Pale blue	0x07ff
pink	0xf800
Pale magenta	0xf81f
yellow	Oxffe0
white	0xffff

Address description of the reception area of the selected report

Word number	instructions
0	Select the X coordinate of the point
1	Select the Y coordinate of the point
2	Click the element, where the sequence number of the selected point
3	value		describe
	0	Dot: a dot Line: the starting point of a line Circle: the center of a circle Arc: the starting point of an arc
	1	Line: the end point of a line Arc: the point at which an arc ends