SUPER IMPORTANT SUMISSION GUIDELINES  You must include a makefile for each assignment!
 The makefile should invoke whatever is needed to compile and/or run your program. When I type
make , I expect to have your program generate an image.
 Every assignment (unless otherwise noted) will require both a github submission and an image gallery submission. Full credit will require both.
 All github repos should be named exactly as described.
 When working with a partner
 BOTH members make the repo. One will be used, the other will be empty.
 The nonempty repo should list both partners names.
 The empty repo README.md should link to the nonempty repo.
 NEVER EVER EVER add image files to github
 Adding image files will result in deductions
 You can include a .gitignore if you want to help avoid issues!
 Gallery submissions should be made here: http://gallery.stuycs.org
sample gitignore: 
posted Apr 17, 2019, 5:24 AM by Konstantinovich Samuel
The deadline for the scanline assignment is Thursday 3pm.

posted Apr 10, 2019, 12:14 PM by Konstantinovich Samuel
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updated Apr 10, 2019, 12:15 PM
]
Add scanline conversion and zbuffering to your graphics engine.  Parser Note:
 In the previous assignment, I noted that the clear command was no longer needed, because we immediately clear the polygon/edge matrix after a shape is drawn. In order to test Scanline conversion on multiple shapes, a different version of clear is useful. Now, clear will clear the screen and zbuffer, allowing us to reset and test multiple shapes in the same script.
 I have added this command to the provided source code, but everyone should implement it.
 Scanline conversion
 Create a new function that handles the scanline conversion.
 Call this in your draw_polygons function.
 Make sure that you change color values for each triangle.
 zbuffering
 In the base files provided, I've added a zbuffer argument to the necessary functions, but have not done anything with it.
 The zbuffer should only be modified in your plot function, or when clear_zbuffer is called.
 You will need to calculate z values in both scanline_convert and draw_line.
 Your z values are not limited to the integers.
GitHub repository: mks66solids 
posted Apr 3, 2019, 10:33 AM by Konstantinovich Samuel
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updated Apr 3, 2019, 10:34 AM
]
Due: 8am Monday, 4/8
07CoordinateStacks
Repo: MKS66CoordinateStack
Note: If you are working in c, I have provided a basic stack library that you can use in the 66source repository
To implement a relative coordinate system... system, add/modify your current parser so it has the following behavior  push
 push a copy of the current top of the coordinate system (cs) stack onto the cs stack (a full copy, not just a reference to the current top... I'm looking at you python people)
 pop
 removes the top of the cs stack (nothing needs to be done with this data)
 translate/rotate/scale
 create a translation/rotation/scale matrix
 multiply the current top of the cs stack by it
 The ordering of multiplication is important here.
 box/sphere/torus
 add a box/sphere/torus to a temporary polygon matrix
 multiply it by the current top of the cs stack
 draw it to the screen
 clear the polygon matrix
 line/curve/circle
 add a line to a temporary edge matrix
 multiply it by the current top
 draw it to the screen (note a line is not a solid, so avoid draw_polygons)
 save
 save the screen with the provided file name
 display
 Also note that the ident, apply and clear commands no longer have any use

posted Mar 22, 2019, 5:57 AM by Konstantinovich Samuel
PTC
In observance with the longstanding tradition of 'gooning' I now solicit volunteers to be the meatshields between me and the hoards of parents in the upcoming week.
Please send an email to me with the subject line: (depending on which day you can make it)
"PTC Volunteer Spring 2019 Thr"
"PTC Volunteer Spring 2019 Fri" "PTC Volunteer Spring 2019 Thr Fri" I will reply This weekend so please send the email sooner rather than later!
Thursday is 5pm8pm Friday is 1pm330pm I need at least one laptop to help with organization, so please let me know if you normally bring a laptop. 
posted Mar 21, 2019, 6:21 AM by Konstantinovich Samuel
You must do the following things:  Write correct, functioning code.
 Submit code that runs the provided testing script
 Upload an original picture to the gallery
The Drawing:  Create new functions to add a polygon to a matrix, and go through the matrix 3 points at a time to draw triangles.
 You should have a new triangle matrix that exists alongside the edge matrix. The edge matrix should be used for the shapes that are exclusively 2d (lines, circles, splines), and the triangle matrix for our 3d shapes.
 Anything aside from shape drawing that modifies/uses the edge matrix (apply, clear, display, save) should now modify/use the triangle matrix as well.
 Modify add box, add sphere and add torus to add triangles instead of points.
 Make sure the parser calls the draw_polygons functions when needed instead of draw_lines
 More to come...
Repo: MKS66Triangles

posted Mar 15, 2019, 11:50 AM by Konstantinovich Samuel
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updated Mar 21, 2019, 6:19 AM
]
We will now begin to add 3d shapes (as points only) to our already simmering graphics stew.
Deadline Wednesday March 20th 8am.
You must do the following things:  Write correct, functioning code.
 Create a script file
 Upload a new picture to the gallery

 add the following commands to the parser
 clear: clears the edge matrix of all points
 c people: this is an incredibly simple operation that shouldn't involve futzing with any of the points in the edge matrix.
 box: adds a rectangular prism (box) to the edge matrix  takes 6 parameters (x, y, z, width, height, depth)
 sphere: adds a sphere to the edge matrix  takes 4 parameters (x, y, z, radius)
 torus: adds a torus to the edge matrix  takes 5 parameters (x, y, z, radius1, radius2)
 radius1 is the radius of the circle that makes up the torus
 radius2 is the full radius of the torus (the translation factor). You can think of this as the distance from the center of the torus to the center of any circular slice of the torus.
 To futureproof your code, you should split sphere/torus creation into 2 parts:
 Generating only the points on the surface of the shape.
 Adding the points to an edge matrix so that they can be drawn.
 Eventually, this part will be changed to handle solid shapes, but the points part will stay the same.
 You should actually add edges to draw the box.
 For the sphere and torus, just add the points for each point on the surface, and an edge from it to a point 1 pixel away to make it easier to see.
REPO:
MKS663D 
posted Mar 8, 2019, 9:28 AM by Konstantinovich Samuel
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updated Mar 21, 2019, 6:19 AM
]
It's time to add curves to the graphics engine. Everything will work as before, we will just have three more shapes to draw .
Add the following commands to the parser circle: adds a circle to the edge matrix  takes 4 parameters (cx, cy, cz, r)
 hermite: adds a hermite curve to the edge matrix  takes 8 parameters (x0, y0, x1, y1, rx0, ry0, rx1, ry1)
 The curve is between points (x0, y0) and (x1, y1).
 (rx0, ry0) and (rx1, ry1) are the rates of change at each endpoint
 bezier: adds a bezier curve to the edge matrix  takes 8 parameters (x0, y0, x1, y1, x2, y2, x3, y3)
 This curve is drawn between (x0, y0) and (x3, y3)
 (x1, y1) and (x2, y2) are the control points for the curve.
MKS66Curves
Basefile including the old assignment's parser can be found in the source repo: 
posted Feb 28, 2019, 6:05 AM by Konstantinovich Samuel
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updated Feb 28, 2019, 6:05 AM
]
 Make a repo: MKS66transform, get your base code, and the script file from:https://github.com/mks66/66source
 Write code to work with transformation matrices:
 create a translation matrix
 create a scale matrix
 create a rotation matrix about the xaxis
 create a rotation matrix about the yaxis
 create a rotation matrix about the zaxis
 Note: The trig functions in python and c take radians as parameters, but you should assume degree input, make sure to convert or things won't look right.
 Modify your main routine so that it keeps track of:
 A single edge matrix
 A single master transformation matrix
 Create a parser that will interpret a script to be used to draw an image.
 Each command is a single word without spaces in it, and if it takes arguments, the line after will contain the arguments, separated by spaces. For example, a line of the file might look like this:
 Here is the full list of commands:
 line: add a line to the point matrix  takes 6 arguemnts (x0, y0, z0, x1, y1, z1)
 ident: set the transform matrix to the identity matrix
 scale: create a scale matrix, then multiply the transform matrix by the scale matrix  takes 3 arguments (sx, sy, sz)
 move: create a translation matrix, then multiply the transform matrix by the translation matrix  takes 3 arguments (tx, ty, tz)
 rotate: create a rotation matrix, then multiply the transform matrix by the rotation matrix  takes 2 arguments (axis theta)
 apply: apply the current transformation matrix to the edge matrix
 display: clear the screen, draw the lines of the point matrix to the screen, display the screen
 save: clear the screen, draw the lines of the point matrix to the screen/frame save the screen/frame to a file  takes 1 argument (file name)\
 The included script tests the various transformations, it should be used when I run make. You still need to create your own image and submit it to the gallery. Please include your script code only when you upload code to the gallery, this way it will be easy for others to try out your pictures!

posted Feb 25, 2019, 7:10 AM by Konstantinovich Samuel
Repos: Make sure you create your repos with the correct name as soon as you start an assignment. You should be commiting and pushing any progress you make. Not committing regularly is not acceptable, you should be doing that when you make any reasonable progress. Not pushing regularly can make your life harder when you forget to push at the end of your session and can't build on what you worked on.
I should be able to clone the repos and check on progress at any point in the lab.

posted Feb 13, 2019, 11:48 AM by Konstantinovich Samuel
[
updated Feb 28, 2019, 6:06 AM
]
There is no spoon.
This will be due Monday, 2/25
Implement the following features but you cannot trivialize the problem by using a structure that already exists in the language you choose:  Create a repo: mks66matrix
 General Matrix stuff
 matrix multiplication (you may assume a 4by4 times a 4byN)
 creation of an identity matrix
 displaying a matrix in a reasonable manner
 Graphics matrix stuff
 add a point to an edge matrix
 add an edge to an edge matrix (should call your add point routine)
 go through an edge matrix and draw the lines stored in the matrix (should call your draw line routine)
 output and display an image file
 Demonstrate your multiply works using the following: (do not reset the values of A and B after each operation)
 A = {{1,2,3,4},{5,6,7,8},{9,10,11,12},{13,14,15,16}}
 B = {{11,12,13,14},{15,16,17,18},{19,20,21,22},{23,24,25,26}}
 mult(A,B)
 print A
 print B
 mult(B,A)
 print A
 print B
 mult(IDENT,A)
 print A
 Upload an image to the gallery page.
Source Code for you to use:
READ THROUGH ALL THE SOURCE FILES. Detailed instructions are provided as comments.
Here is an example of what would happen if you added 2 points and multiplied: Testing add_edge. Adding (1, 2, 3), (4, 5, 6) m2 =
1.00 4.00
2.00 5.00
3.00 6.00
1.00 1.00
Testing ident. m1 =
1.00 0.00 0.00 0.00
0.00 1.00 0.00 0.00
0.00 0.00 1.00 0.00
0.00 0.00 0.00 1.00
Testing Matrix mult. m1 * m2 =
1.00 4.00
2.00 5.00
3.00 6.00
1.00 1.00
Testing Matrix mult. m1 =
1.00 4.00 7.00 10.00
2.00 5.00 8.00 11.00
3.00 6.00 9.00 12.00
1.00 1.00 1.00 1.00
Testing Matrix mult. m1 * m2 =
40.00 76.00
47.00 92.00
54.00 108.00
7.00 16.00

