Don't use this tag. If you have questions about cartesian products (e.g. SQL, Spark, Datatables, heterogeneous tuples), use `cartesian-product` tag. If you have questions about planar geometry / 3D-graphics, use `cartesian-coordinates` tag.
Questions tagged [cartesian]
245 questions
0
votes
1 answer
Calculation area whith Cartesian plane
PHP with GD I built a quadrangle on the Cartesian plane.
I measured the 4 sides, result = 100 each (the corners are at 90 degrees).
Area calculation formula of Gauss.
https://en.wikipedia.org/wiki/Shoelace_formula
Area doverebbe be 10,000, but my…
sandra
- 29
- 2
0
votes
0 answers
Normalized Vertex to Cartesian
Currently, I am using DirectX 11 to draw a primitive on my screen.
Currently the Vertex is in normalized coordinates where the position ranges from -1, -1 to 1, 1.
I would like to set up my Vertex to use Cartesian coordinates 0, 800 to 0,…
John
- 5,942
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- 79
0
votes
1 answer
Strange behavior of cartesian transformation in scala spark
I am using Cartesian transformation in Scala Spark, and I have a set of 6 coordinates as follow.
coord.collect
res114: Array[(Float, Float, Float)] = Array(
(43.13,-67.331,-18.137),
(63.914,-67.078,-16.894),
(23.13,-60.341,-28.117), …
Kent Carlevi
- 133
- 1
- 11
0
votes
4 answers
Python cartesian product
I have the following dictionary in Python:
{1: [('4', 0.761),
('6', 0.752),
('5', 0.741),
('15', 0.671),
('8', 0.657),
('1', 0.649),
('10', 0.649),
('11', 0.645),
('2', 0.637),
('7', 0.632),
('17',…
M Arias
- 11
- 4
0
votes
1 answer
Cartesian product to same table in oracle without duplicate
I have a table and i want to produce a Cartesian of that data with same table itself.
TABLE: TEMP_TEST
FROM_COL
--------------
A
B
C
If I write the below query for Cartesian then…
user5073139
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- 1
- 1
0
votes
1 answer
javascript: lat/lon, lat1/lon1, bearing, distance to x,y screen coordinates?
how to project a lat/lon hotspot onto an 360x180 degree panorama image?
Using javascript?
Real data:
lat/lon in decimal degrees and altitude in meters:
Camera coordinates: 49.994249, 8.66539, 2
Hotspot coordinates: 49.994163, 8.665388, 2
Distance…
janmartin
- 11
- 1
- 1
- 5
0
votes
1 answer
Transition from spherical coordinate system (local) to cartesian
I have got this problem, so there is a set of data as points in the spherical coordinate system - local (not a faithful arrangement of geographic or mathematical)and I'm trying to convert it to a Cartesian system to preview it in any program to draw…
pzima91
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- 3
0
votes
0 answers
Shuffling on Spark cartesian product
Assume a problem where I have an RDD X, I calculate the mean m in single a worker node and then I want to calculate X-m to e.g. calculate stdevs. I want this to happen in the cluster, not the driver node i.e. I want m to be distributed. I thought of…
neverlastn
- 2,164
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- 23
0
votes
2 answers
X and Y coordinate loop in java
i am trying to make a for loop that will go through 9 different sets of points and execute them in my main driver with two other classes. I'm pretty stuck at the moment and can't figure out how to get the second (pointC2) to be set before the for…
Cfs0004
- 85
- 2
- 14
0
votes
0 answers
Spark RDD Cartesian tuple index out of range
I'm trying to run a function across the cartesian product of two PySpark DataFrames with:
joined = dataframe1.rdd.cartesian(dataframe2.rdd)
collected = joined.collect()
for tuple in collected:
print tuple
# new_rdd =…
lukewitmer
- 1,153
- 3
- 11
- 21
0
votes
2 answers
Cartesian Join SAS Proc SQL
I have two data sets that look like this:
data sales;
format week date9.;
input store $ week date9. sales;
cards;
A 01JAN2014 200
A 08JAN2014 500
A 22JAN2014 200
B 01JAN2014 100
B 08JAN2014 200
B 15JAN2014 200
;
run;
data dates;
format…
pyll
- 1,688
- 1
- 26
- 44
0
votes
1 answer
How can I append records that don't already exist in a table from a cartesian product query?
My current query returns every possible outcome from 2 tables and inserts them into a junction table.
My current query looks like this:
INSERT INTO tblJunction_Courses_Software ( CourseID, SoftwareID )
SELECT tblCourses.CourseID,…
mARC
- 3
- 2
0
votes
1 answer
Cartesian product of numbers in a single list with given number (C#)
I just want to get cartesian product of numbers in a single list with specified number in C#. In below, I gave some examples of actually what I want get to:
List numbers = new List() { 0, 1, 2 };
There should be a function to get all…
mrciga
- 47
- 8
0
votes
1 answer
Cartesian product SQL
I have searched in other questions but I don't really get how to get the correct amount and not the cartesian product.
I have the following table:
EGAIT6 EGACAM EGVONO ACC
2477717 -1443,87 41300015 2995
2477717 -2424,75 41300021…
Lily
- 9
- 6
0
votes
1 answer
How to convert Cartesian image to Polar image
I use the below code to convert the image in the Polar to the Cartesian.
for ii=1:500;
for jj=1:500
phase(ii,jj)=((ii-250)^2/1000+(jj-250)^2/1000);
end
end
Cartesian=cos(phase);
[imrow,imcol]=size(Cartesian);
% choose the center of…
JCooper
- 1