I am looking for a royalty free vector of a peacock. Preferably something that looks like an etching or woodblock print. I don't mind paying for it, but don't want to spend a fortune.|||Some good royalty free micro stock sites:
http://www.istockphoto.com/index.php
http://www.dreamstime.com/
http://www.123rf.com/|||Also try Shutterstock
http://www.shutterstock.com/cat.mhtml?la鈥?/a>
Tuesday, November 22, 2011
How do I convert a cartesian vector into spherical coordinates?
Specifically, how do I represent:
r(x,y,z) = xi + yj + zk
As a vector fuction of ro, theta and phi?|||ro^2 = x^2 + y^2 + x^2
ro = sqrt(x^2 + y^2 + x^2)
cos(phi) = z / ro
cos(theta) = x / (ro * sin phi)|||x=p*sin(phi)*cos(theta)
y=p*sin(phi)*sin(theta)
z=p*cos(phi)
So however you want to represent your r(x,y,z), just replace with these conversions.
r(x,y,z)=p*sin(phi)*[i*cos(theta)+j*si鈥?for example.
r(x,y,z) = xi + yj + zk
As a vector fuction of ro, theta and phi?|||ro^2 = x^2 + y^2 + x^2
ro = sqrt(x^2 + y^2 + x^2)
cos(phi) = z / ro
cos(theta) = x / (ro * sin phi)|||x=p*sin(phi)*cos(theta)
y=p*sin(phi)*sin(theta)
z=p*cos(phi)
So however you want to represent your r(x,y,z), just replace with these conversions.
r(x,y,z)=p*sin(phi)*[i*cos(theta)+j*si鈥?for example.
How do you invert a vector mask in Photoshop?
I created a vector mask, but it's masking out the wrong part.|||a simple way to do it would be to finish the mask in the shape you want, then convert it to a selection and choose the inverse selection.|||here try out what these guys are saying...been a while since Ive messed with vector masks
http://objectmix.com/adobe-photoshop/231鈥?/a>
http://objectmix.com/adobe-photoshop/231鈥?/a>
In general, how would you sketch a vector that was n times a given vector? How would the lengths and headings?
In general, how would you sketch a vector that was n times a given vector? How are the lengths and headings of these two vectors related?|||The lengths would be n times as long as the original and the heading would be exactly the same.|||A scalar multiple of a vector is the same direction and 'scaled' in magnitude by the value.
That is, their 'headings' are the same, but their lengths are relative to the scalar by which they were multiplied.
Doug|||if n is a scalar and not a vector then the length of the vector changes by a factor of n (new length = old length * n) and the direction remains constant.
If n is another vector with magnitude n and a direction then the vectors are multiplied using vector multiplication rules and the resultant will have a different magnitude and direction.
That is, their 'headings' are the same, but their lengths are relative to the scalar by which they were multiplied.
Doug|||if n is a scalar and not a vector then the length of the vector changes by a factor of n (new length = old length * n) and the direction remains constant.
If n is another vector with magnitude n and a direction then the vectors are multiplied using vector multiplication rules and the resultant will have a different magnitude and direction.
Where I can get my logo converted to vector file with lowest price?
I run a small business and I have some logos to be converted to vector file,but my budget is very low.So
Where I can get my logo converted to vector file with lowest price? How much is it ?|||Email me with the specifics and a picture of your current logo. I understand your budget concerns and I'll work with you on the price.
mattymjb@yahoo.com|||I could convert these logos for you for cheap. I am a freelance graphic designer with over 10 years of experience. I work with many screen printers and other business owners on a daily basis converting their logos to vector format. I could probably do them each for $10. But I would have to see how complex they are first. Email me the logos and I will give you an exact price. I am ready to start on these ASAP.|||This company provide a eye-catching logo conversion service! Their price is very reasonable!
Look at this page to know more information！
http://www.pgconversion.com/price_guide.htm
Where I can get my logo converted to vector file with lowest price? How much is it ?|||Email me with the specifics and a picture of your current logo. I understand your budget concerns and I'll work with you on the price.
mattymjb@yahoo.com|||I could convert these logos for you for cheap. I am a freelance graphic designer with over 10 years of experience. I work with many screen printers and other business owners on a daily basis converting their logos to vector format. I could probably do them each for $10. But I would have to see how complex they are first. Email me the logos and I will give you an exact price. I am ready to start on these ASAP.|||This company provide a eye-catching logo conversion service! Their price is very reasonable!
Look at this page to know more information！
http://www.pgconversion.com/price_guide.htm
How to find a unit vector that is normal (perpendicular) to a plane determined by three points?
Find a unit vector that is normal (perpendicular) to the plane determined by the points A(1, - 1, 2)
,B(2,0, - 1) and C(0,2,1).
I have no idea whatsoever about how to solve this one. All help is really appreciated!|||Form two vectors with your points. e.g.
AB = (1, 1, -3) and AC = (-1, 3, -1).
The cross product of these will be normal to the plane. To get a unit normal, just divide the cross product by its magnitude.
v = AB x AC = (8, 4, 4).
||v|| = 鈭?8虏 + 4虏 + 4虏) = 4鈭?6).
n = v/||v|| = (2/鈭?6), 1/鈭?6), 1/鈭?6)).
,B(2,0, - 1) and C(0,2,1).
I have no idea whatsoever about how to solve this one. All help is really appreciated!|||Form two vectors with your points. e.g.
AB = (1, 1, -3) and AC = (-1, 3, -1).
The cross product of these will be normal to the plane. To get a unit normal, just divide the cross product by its magnitude.
v = AB x AC = (8, 4, 4).
||v|| = 鈭?8虏 + 4虏 + 4虏) = 4鈭?6).
n = v/||v|| = (2/鈭?6), 1/鈭?6), 1/鈭?6)).
How do you write a vector equation with the given info?
How do you write a vector equation of the line that passes through (6, 1) with a slope of -2/3?|||If the slope is -2/3, this means it is "rise/run" or Δy / Δx. Therefore, we can split this up into x and y components:
Δy = -2
Δx = 3
And make a vector out of them:
%26lt;Δx,Δy%26gt;
%26lt;3,-2%26gt;.
Now that we have our slope vector, and our initial position vector, %26lt;6,1%26gt;, we can write the equation of a line.
r(t) = r0 + v*t
r(t) = %26lt;6,1%26gt; + %26lt;3,-2%26gt;t
r(t) = %26lt;6,1%26gt; + %26lt;3t, -2t%26gt;
r(t) = %26lt;(3t + 6), (1 - 2t)%26gt;
Δy = -2
Δx = 3
And make a vector out of them:
%26lt;Δx,Δy%26gt;
%26lt;3,-2%26gt;.
Now that we have our slope vector, and our initial position vector, %26lt;6,1%26gt;, we can write the equation of a line.
r(t) = r0 + v*t
r(t) = %26lt;6,1%26gt; + %26lt;3,-2%26gt;t
r(t) = %26lt;6,1%26gt; + %26lt;3t, -2t%26gt;
r(t) = %26lt;(3t + 6), (1 - 2t)%26gt;
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