**Need to know how to trap int 21h function 09h using watcom or inline assembly**I am writing a application in which i want to convert the
textmode(03h=80x25x16) screen into graphics mode(12h=640x480x16). But
while doing this i want to read the textmode buffer from memory
address 0xb8000( i m using causeway as a extender). This application
is sucessfull to run in windows 98 dos session. But it doesn't works
on pure dos versions.so now i want to trap the specific interrupt
which writes the buffer to memmory.But i m not getting how to do it.i
know that in 21h function 09h does this. can any one give me some
hints or any code to know how to trap int 21h function 09h usi...

**visual c++ inline assembly migration to gcc inline assembly**Hi everyone!
Sorry for bad english you may encounter below.
I have some windows visual c++ inline assembly functions to migrate to
linux gcc inline assembly. The goal of these functions is to handle big
numbers used in RSA encyption/decryption systems.
I am not very familiar with gcc inline assembly. I spent two days on
migrating ln_copy(DWORD *p, DWORD *q)(copy the value of bignum q to p)
and ln_zero(DWORD *p) (set the value of bignum p to zero). I got really
frustrated. Now I have some more difficult functions which I just don't
know how to migrate.
I listed three typical ones h...

**3D plots : "points plot" / "nuage de points"**Hello,
I'm looking forward to a 3D plot function which would allow to display
3D "points plot" ("nuage de points", en Fran=E7ais...), each point's
color beeing indexed by the colormap. Something similar is possible
with surf() but facets are drawn... As far as hist3d() is concerned, we
have columns...
Thank you for your precious help,
Gregala
param3d1
...

**How to plot a curve point by point?**Hellow!
Anyone has the idea about how to show a curve point by point? I use
plot(x,y), but all the point of the curve show up at the same time,
are there anyway i can control this procedure? thanks!
John
John wrote:
>
>
> Hellow!
> Anyone has the idea about how to show a curve point by point? I use
> plot(x,y), but all the point of the curve show up at the same time,
> are there anyway i can control this procedure? thanks!
>
> John
several possible approaches:
% the data
x=1:5; y = rand(size(x)) ;
1) create different line objects
for i=1:length(x),
plot(x(i),y(i),...

**Contour Plot + Points Plot**I found out that Proc Gcontour can produce the contour
plot of Z=f(x,y). Normally, the contour plot is
superimposed on the plot of points of Y vs X. Can you
tell me how to create these two plots at the same
time?
Thank you
Dale
proc gcontour data=a;
plot y*x=z;
run;quit;
__________________________________________________
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...

**plotting points in 3d plot??**hello..
how to plot just points in 3d plot if i have three vectors of big
size (1500 x 1).
I dont want matlab to draw joining lines from these points...i just
want to see points in 3d plane...possible??
sohail
I think the command is:
>> plot3d(x,y,x)
where x,y,z are single dimension
sohail wrote:
>
>
> hello..
> how to plot just points in 3d plot if i have three vectors of big
> size (1500 x 1).
> I dont want matlab to draw joining lines from these points...i just
> want to see points in 3d plane...possible??
>
> sohail
sohail wrote:
> hello..
> h...

**plot a point to a series of points**Hi all,
I'm having a little problem to connect one point to several points.
I have a point : 1*2 matrix (A) and a 23*2 matrix (B). And I would like to link every points of the 23*2 matrix to my single point (1*2 matrix).. I tried several ways:
plot(A,B) .. doesn't work
plot(B,A) .. doesn't work
plot([A(1),B(1:end)],[A(2),B(2:end)]) .. doesn't work
plot([A(1,1),B(1:end,1)],[A(1,2),B(1:end,2)]) .. doesn't work
please, need help!!!
"Nicolas " <pam5663@hotmail.fr> wrote in message <hkjvgu$l0q$1@fred.mathworks.com>...
> Hi all,
>
> I'm h...

**Plot a curve points by points**Hello,
(French translation in bottom)
First, please excuse my bad english ...
I've done a experiment on the resistance of a material, and I would try to
trace (plot ?) my results on a curve, I've 12 points and I've done the
experiment twice, how can I plot this ?
Thx
Antohny
----
Bonjour,
J'ai fait un test pour evaleur la resistance d'un materiau et je voudrais
tracer la courbe qui represente la deformation (en mm) en fonction de la
force en N, comment puis-je realiser cela ?
Mon pote qui travaille avec moi, utilise Mathlab, mais moi je suis sou...

**plot derivative; plot with points**Hi all.
I have two different queries on Gnuplot features:
(1) Is it possible to plot derivative of a data file? In other words,
if I have a data file that gives y-data as a function of x-data, can I
plot dy/dx in Gnuplot from the data file?
(2) I have a data file with many data points. I plot it 'with points'
option. The problem is that where the curve is flat (horizontal), the
points are too much dense, giving a thick-line like look, and where
the curve is steep, the points look rarer and the plot is ok. If I use
the 'every' option, say 'every 2', then the p...

**Interpretting plot of two vectors as "multiline plot" with just point each in each plot?**Hi,
When we apply the plot command to two matrices X and Y of equal size, matlab constructs a plot for every pair of corresponding columns in the two matrices, and assigns colors to the plots according the order specified in the ColorOrder property of the axes. eg:
t = [0:0.01:1]';
rad = [1 2 3 4];
X = cos(2*pi*t)*rad;
Y = sin(2*pi*t)*rad;
plot(X,Y, '*')
If X and Y are vectors instead of matrices, matlab always interprets them as consituting the points of a single plot, no matter whether X and Y are row or column vectors.
Is there any (proper) way to force matlab to...

**Re: Contour Plot + Points Plot**Hi,
I think it can be done by Annotate, something like:
data anno;
set a;
retain xsys '2' ysys '2' when 'a' function 'symbol' text 'circle';
run;
proc gcontour data=a annotate=anno;
plot y*x=z;
run;
...

**plot cloud points with rg of each points**I am using 3d laser scanner , and have x,y and z axis from my sensor these three points , now what i want to know is that how can i build 3d point cloud from my these three points and how can i draw the normal to the surface in the resulting point cloud. and also with rgb for each point.
Thanks in advanceProvide a detailed description of the issue you are facing.
...

**plot and diaplay data point by point**hi,
i there a way to display what is being plotted in matlab,point by point,
like a oscilloscope.
e.g suppose i have an array x=[1:1:5];y=x.^2; i need to plot y values on the graphwithin a for loop,but as the loop goes through each data point, y values should be plotted sample by sample.
in debug mode it works, but otherwise, even if i put a delay within loop, the loop first finishes,and then displays the result.
code is
x=[1:1:5];y=x.^2;
for j=1:length(y)
stem(x(j),y(j));hold on;
conv2(rand(200,200),rand(200,200)); % to slow up the loop
end
any help?
thnks
sid
"s...

**Plot points on the same plot inside a loop**Hello,
I have set up a for loop. At the end of each iteration, I end up with a scalar value, which I append to a vector, d. Each iteration takes quite a while, and I would like to see (plot) the values of d as they are calculated.
So,
- Iteration 1: Calculate the first value of d. Open up a figure. Plot the first point.
- Iteration 2: Calculate the second value of d. Plot the second point on the same figure.
- ...
I would also like to join them with a line as they appear. I was thinking for plotting my vector d at the end of each iteration, and just closing the previous figure b...

**plotting a point on a line between two points**Hi
Sorry if this is totally elementary, I really should have paid more
attention in math class!
If I have two points(in 3d space), lets say point 1 is(1,2,5) and
point 2 is (4,8, 50), and I want to plot an arbitraray point on a line
between the two points but only know the third value, so point 3 is
(x,y, 15) what mathematical formula do I use to figure out x and y?
Again, sorry as I am sure this is totally elementary, but I have spent
the better part of the morning googling this and many other groups to
no avail.
Thanks
Mike Cardeiro
mcardeiro@yahoo.com wrote:
> If I have two poi...

**plot from the end of former plot (point)**Hallo,
I need to plot a new curve on the end of the original that i have. I
need the new plot to begin at this point.
I currently have a curve that finishes at (a,b) for example. this
means that I then want to begin my next plot from (a,b) rather than
(0,0) or just a change on one axis. Is there a way of doing this
without changing the major plot formulas.
Thank you for your help and assistance in advance.
Cheers
Aidan
yes
first if u want to plot a graph above another u can use hold
for example
plot(x,y)
hold on
plot(v,f)
hold off
and don't forget hold off statement
On Jan 15, 1...

**is there any function to plot draggable points on plots?**
ginput can plot points interactively but the points are not draggable.
"Ha" wrote in message <k8636h$8ph$1@newscl01ah.mathworks.com>...
>
> ginput can plot points interactively but the points are not draggable.
No, you have to code that yourself using a series of functions. Here is a simple example:
function dragtest
figure
axes('xlimmode','manual','ylimmode','manual') %<- important
line(0.5,0.5,'marker','s','markersize',10,'hittest','on','buttondownfcn',@clickmarker)
fun...

**Inline assembly and Tasking compiler/assembler**Hello,
I'm using the Tasking C compiler/assembler toolchain and I need to do
some inline assembly code.
What I want to do is copy the SR (status register) to a variable in the
C code so I can examine it. However, I haven't been able to get the
inline assembly code to recognize the C varable. The only thing I can
find for inline assembly is the _ASMLINE, _ASM, and _CASM.
Is there a way to do what I want or am I just missing something?
Thanks.
Mike
...

**Plot points on the same plot inside a loop #2**Hello,
I have set up a for loop. At the end of each iteration, I end up with a scalar value, which I append to a vector, d. Each iteration takes quite a while, and I would like to see (plot) the values of d as they are calculated.
So,
- Iteration 1: Calculate the first value of d. Open up a figure. Plot the first point.
- Iteration 2: Calculate the second value of d. Plot the second point on the same figure.
- ...
I would also like to join them with a line as they appear. I was thinking for plotting my vector d at the end of each iteration, and just closing the previous figure b...

**Point of defining an inline function and calling it at the same point?**Ok, I'm sure that subject is confusing, but I noticed the following
curious code on the main page of the "Vitamin" web developer's page
<http://www.thinkvitamin.com/>:
<script type="text/javascript">
//<![CDATA[
(function(id) {
document.write('<script type="text/javascript" src="' +
'http://www.northmay.com/deck/deck' + id + '_js.php?' +
(new Date().getTime()) + '"></' + 'script>');
})("VM");
//]]>
</script>
The key thing I noticed is that this is def...

**how to plot 3d points, each point with grayscale intensity**hi,
i have a set of 300 points with 3d coordinates, each point with intensity values. is it possible to plot these points on 3d axes, each point being in a different shade of gray corresponding to their intensity? thanks so much in advance!!
no one replied yet, but i just figured it out, so i thought i would post it here for people who might be wondering too. so the plot command takes color values in pseudo-rgb on a scale from 0 to 1 for each rgb number, and the grayscale colors actually run in multiples of [1 1 1] (on the actual rgb scale), so i ended up just scaling my intensities on 1 and...

**Plotting data + colouring data points in the plot**Hi,
I've got txt files which consist of the columns similar to this:
-0.05682 0 0.02609
0.02841 0 0.00379
9.34659 0 0.021
20 0 0.02227
30.69602 0 0.03884
41.06534 0 0.05285
51.34943 0 0.07197
61.33523 0 0.00889
71.20739 0 0.04967
81.16477 0 0.01781
91.13636 0 0.028
101.26421 0 0.04903
111.32102 0 0.021
121.29261 0 0.02163
131.22159 0 0.04393
141.27841 0 0.05859
151.40625 0 0.0433
161.33523 0 0.05668
171.25 0 0.0108
181.22159 0 0.10637
This is just a piece of the data file. The columns are separated by space and the first two columns represent x y position a...

**Plotting data and including the ORDER of the points on the plot**thought this would be quite simple, but cant get it to work or see anyone else with a similiar prob.
I have a normal 2D graph of data points. (say numbering 20 in total). plot(x,y). great. I would like to see the number of the datapoint displayed on the graph. how?
eg X3,Y3=14.167, 17.123. I want to see a small label placed near the X3,Y3 data point, called "3".
The order of the datapoints is visually important to me.
any ideas? Many Thanks!
Hi Hugh,
Please try the following:
N = 20;
x = rand(N,1);
y = rand(N,1);
plot(x,y);
for k = 1:N
...

**Plotting points in fainter color on an IDL plot**Hello, I have a scatter plot in which there are some points which represent=
more reliable determinations than others. I want to plot both kinds of poi=
nts in the same color but the less reliable ones in paler colors. In a sens=
e, I want to change the brightness of few points on the plot. Is it possibl=
e in IDL? I am using color table 13 and plot and oplot procedure of IDL.
Thanks for the help,
Kaushal
Kaushal Sharma writes:
> Hello, I have a scatter plot in which there are some points which represent more reliable determinations than others. I want to plot both kinds of...