need Help !!! in Graphics....

[Stefan Koenig]

I started with a gigantic Project.
I like to Build a complete Digital Dashboard for my Van.
even all Original Instruments should be exchanged with a Display.

There should be in Future just 2 Display`s in the Car...
for all Drive necessary`s a(6,4" TFT) Backlighted and
Dashboard- mounted and for Backwards Driving a Roof-Mounted
one (also 6,4" TFT)

it will maybe later fitted with Touchscreen to remove also
the Switches for Lights, Wiper and so on....
I using Industrial -PC`s with an AMD- K6 266 MHz and
have 4 Serial Ports for Communications.


in the Past i done some Programming in TurboBasic wich i can use
now - what makes it a little Easier for Build.

my Problem is now:
i like to Integrate 2 "Analog" Instruments Graphically, but i have
absolutely no Idea and know How to realize it.
The instruments should be a Speedometer and a Compass beside,
where the Speedometer should be start at left Bottom
and ends in right top of Display
The Compass should be on right bottom

The Speedometer will come on COM1 with 9600 Baud

The Data`s who are comes in are in follow Format:
Protocoll:
%SOG,GRS,DW,PRS,FLT,LIG,HEA,WIP,TEMP,FL
what will be used at follow:

SOG = Speed over Ground >INTEGER< visible as Speedo in KM/h
GRS = Gyro move forwards >INTEGER< visible as an Arrow app. 1cm
DW = Driven Way in Km >INTEGER< visible as "normal" KM area
PRS = Pressure of Air >INTEGER< visible as an integrated instrument
FLT = Air- Filter exchg. >INTEGER< visible as an Percent Bar
LIG = Light on/off >Byte< is just a highlighted Bar
HEA = Fan on/off >Byte< is just a highlighted Bar
Wip = Wiper on/off >Byte< is just a highlighted Bar
TEMP= Temperature >Integer< visible as percent Bar
FL = Fuel in Liter >Integer< visible ans an integrate instrument

------------------------------------------------
All this Data must be Integrated in the Dashboard Screen...

The Data`s are Basic NMEA Data`s and comes to Serial port COM2

the Complete Graphics is not extreme Time Critical, while the
internal Physically Organisation of the Rest
will be made with a seperate PC. (same system)

in the Past i don`t do graphically Programming.
while i am searching i did not found some usable samples
for the graphical indicator`s. i.eg. for Compass....

( or maybe not able to use them while they not described)
I.M.H.O.


I using Powerbasic for DOS version 3.20

is anyone here, who can help me with some sample Codes or help
by coding ????
The use of Data`s will be no Problem,
only the Graphics. is my Problem .....


Thanks ind Advance for Help at this Project
for sample-Picture how i like to visible mailto:
[email protected]


------------------

[Stefan Koenig]

Sorry, i forgot some Issues:

Oil-Pressure and Heading (will be fitted separatly)
in follow format :
,Oil in >Integer< shown as "Light-Symbol"

and on Com 3 Heading Data`s,
where format is:
%HHH,L - where -

HHH is the Heading degree in >Integer<
L is Signal Strength as >Byte<


------------------

[Paul Dixon]

Stefan,
it's not clear what you're after. Do you just want PB code to draw these sorts of things on a PC display or are you after code to communicate with an external flat panel/touch screen?

For the first case, PB/DOS has LINE and CIRCLE commands to draw such thing eg as below.

Paul.

DegToRad!=3.14159/180


rem a graphic screen
screen 12

rem centre point and size of compass
xc%=400
yc%=400
r%=60

rem Draw the compass
circle (xc%,yc%),r%


oldEndlinex%=0.9*r%*sin(0)
oldEndliney%=0.9*r%*cos(0)

'draw/move the pointer
for angle% = 0 to 359 step 5
color 0,0
line (xc%,yc%) - step (oldEndlinex%,oldEndliney%)

endlinex% = 0.9*r%*sin(DegToRad! * angle%)
endliney% = 0.9*r%*cos(DegToRad! * angle%)

color 2,0
line (xc%,yc%) - step (endlinex%,endliney%)

delay 0.05
oldEndlinex%=endlinex%
oldEndliney%=endliney%

next

skip:

rem a bargraph/speedometer
wide% =  50
long% = 100
xc%=50
yc%=400

for c% = 1 to 10

for l%= 0 to long% step 5

length%=long% * sin(DegToRad! * 180*l%/long%)
line (xc%,yc%) - (xc%+length%,yc%+wide%),3,BF

line (xc%+length%,yc%) - (xc%+long%,yc%+wide%),0,BF

delay 0.05

next
next