*  Cyclohexane Chair Conformations Axial and Equatorial Tutorial Video
Cyclohexane Chair Conformation Video Tutorial as part of the Video Series by Leah4Sci- Learn about Chair Conformations including axial and equatorial interactions and stability with this step by step organic chemistry tutorial video
*  Patent US5123085 - Method and apparatus for rendering anti-aliased polygons - Google Patents
A scan conversion process is performed on a polygon using a single pass technique. The pixels which comprise the edges and vertices of the polygon are first determined from the vertices which define the polygon. The alpha channel comprises either a sub-pixel mask associated with each pixel which indicates the amount and sub-pixel regions of coverage or a single value indicative of the percentage of coverage of a pixel. Furthermore, a z value indicative of the depth of each pixel is maintained. The pixels between the edge pixels of the polygon are then turned on, thereby filling the polygon. The pixels which comprise the polygon are then composited with the background pixels on a per pixel basis. The depth value of each pixel of the polygon (the z value) is used to determine the compositing equations to be used to composite each pixel of the polygon to the background. The compositing equations update the color of the pixel, the z buffer value of the background pixel and the sub-pixel mask to reflect the
*  Orientational order parameter studies on some Schiff based liquid crystals | RRCE
Orientational order parameter studies on some Schiff based liquid crystals" in National Seminar on "EMERGING TRENDS IN SOFT MATERIALS" conducted by Department of Physics, Krishnadevaraya Universiy, Ananthapur on 1st November 2012 ...
*  CCCC 1994, Volume 59, Issue 3, Abstracts pp. 675-682 | Collection of Czechoslovak Chemical Communications
The synthesis of two pairs of the title diastereomers, which represent conformationally constrained analogues of the phenylcarbamate local anesthetics, is described. The synthesis was accomplished by starting from cycloheptanone and 2-alkoxyanilines and the intermediate diastereomers of 2-aminomethylcycloalkanols (VI, VII) were separated as their 4-nitrobenzoyl derivatives (IV, V) by extraction and fractional crystallization. The prepared compounds (VIIIa, VIIIb, IXa, and IXb) are assumed to be of help in interpreting the structure activity relationships within this class of drugs.. ...
*  Patente US5446836 - Polygon rasterization - Google Patentes
System and method for the rasterization of polygons. Each edge of the polygon (e.g., a triangle) is represented by a linear edge function which classifies each pixel within the plane of the polygon. In particular, pixels having a value greater than zero are on one side of an edge and less than zero on the opposite side of an edge. Each pixel within the plane of the polygon has associated with it a set of edge variables which represent the signed, horizontal distance between the pixel and the respective edges of the polygon. A pixel is rendered based on the value of a pixels edge variables which is generated with reference to the edge functions. The edge functions are applied to a linear span of pixels. Initially, the value of a set of edge variables for a given pixel within a triangle is determined by evaluating the three edge functions associated with that triangle. In order to determine which pixels to render, the present invention generates a W-bit render mask based upon the values of these edge
*  Therese C. Biedl, Erik D. Demaine, Sylvain Lazard, Steven M. Robbins, and Michael A. Soss: Convexifying Monotone Polygons
This paper considers reconfigurations of polygons, where each polygon edge is a rigid link, no two of which can cross during the motion. We prove that one can reconfigure any monotone polygon into a convex polygon; a polygon is monotone if any vertical line intersects the interior at a (possibly empty) interval. Our algorithm computes in O(n2) time a sequence of O(n2) moves, each of which rotates just four joints at once ...
*  Frequency polygon legal definition of frequency polygon
Definition of frequency polygon in the Legal Dictionary - by Free online English dictionary and encyclopedia. What is frequency polygon? Meaning of frequency polygon as a legal term. What does frequency polygon mean in law?
*  Patent US3816726 - Computer graphics clipping system for polygons - Google Patents
A system is disclosed for clipping three-dimensional polygons for use in a computer-graphics display. The system removes from each polygon all parts that lie outside an arbitrary, plane-faced, convex polyhedron, e.g. a truncated pyramid defining a viewing volume. The polygon is defined by data representing a group of vertices and is clipped separately in its entirety against each clipping plane (of the polyhedron). In a multiple-stage structure as disclosed, each stage clips the polygon against a single plane and requires storage for only two vertex values. A time-sharing embodiment of the system is also disclosed. The disclosed system also incorporates the use of a perspective transformation matrix which provides for arbitrary field-of-view angles and depth-of-field distances while utilizing simple, fixed clipping planes.
*  Polygon with hole
DOCTYPE html, ,html, ,head, ,meta name='viewport' content='initial-scale=1.0, user-scalable=no', ,meta charset='utf-8', ,title,Polygon with Hole,/title, ,style, /* Always set the map height explicitly to define the size of the div * element that contains the map. */ #map { height: 100%; } /* Optional: Makes the sample page fill the window. */ html, body { height: 100%; margin: 0; padding: 0; } ,/style, ,/head, ,body, ,div id='map',,/div, ,script, // This example creates a triangular polygon with a hole in it. function initMap() { var map = new google.maps.Map(document.getElementById('map'), { zoom: 5, center: {lat: 24.886, lng: -70.268}, }); // Define the LatLng coordinates for the polygon's outer path. var outerCoords = [ {lat: 25.774, lng: -80.190}, {lat: 18.466, lng: -66.118}, {lat: 32.321, lng: -64.757} ]; // Define the LatLng coordinates for the polygon's inner path. // Note that the points forming the inner path are wound in the // opposite direction to those in the outer path, to form the ...
*  Re: [PEDA] Polygons & keepouts (was Serious Bug: Polygons still c onnecting to pads...)
Yes, keepouts are a red herring here. The problem is in the polygon pour routines; if a keepout has the net attribute of the polygon, the polygon, set for pour over same net, treats the keepout as if it were an ordinary track, it does not cause a violation and pour will not avoid it. I consider this desirable behavior. If you want an unconditional keepout, create it with no_net. I went down a whole deceiving road with this, working with a test pcb that, I don't recall how, had the board clearance rules disabled. Naturally, I got some weird behavior for pours. I would expect that Protel took the simple path in creating the keepout attribute: really, all a keepout needs to be is a primitive that does not plot and does not implement a connection. Everything else should be the same. Knowing this could allow some complex controllable behavior for keepouts. For example, one could set a routing keepout that allowed only a single net to cross the keepout. While I would prefer to be able to set a net ...
0012] At 135, the computer processor is configured to execute a conversion tool to convert the model from the CAD format into the lightweight format. At 140, the reduced mesh is exported into the lightweight format. The lightweight format can be a .JT format (145). The conversion tool can be an Okino Polytrans tool (150). The animation tool can be an Autodesk 3D Studio Max product (153). At 155, the animation tool combines the polygons of the lightweight format into a reduced mesh via a 3D Studio Max attach list function. At 160, the animation tool optimizes the reduced mesh by reducing the count of polygons of the model via a 3D Studio Max ProOptimizer function. At 165, the computer processor is configured to use the exported optimized mesh in a real time application, and at 167, the real time application includes one or more of a virtual reality application and a computer game application. At 175, the animation tool combines the polygons of the lightweight format into a reduced mesh by ...
*  Patent US4757461 - Process for graphically representing a structure - Google Patents
A process for graphically representing a simulated workpiece as processed by a numerically-controlled machine tool. Stored data defining the workpiece and the tool as well as program data defining relative movement therebetween are used to generate polygons which represent the workpiece and the tool and the path of movement of the tool. These polygons are hierarchically ordered and liked. Corresponding to the hierarchic order of the polygons, intersection point calculations in the linkage are made only for the workpiece polygons which overlap the tool polygon. The image of the processed workpiece is generated successively through the continuous superposition of the changing workpiece polygons with the processing polygons corresponding to the tool and its path. Workpiece edges which drop out are erased, and invisible workpiece edges are nto represented.
*  Patent US6219070 - System and method for adjusting pixel parameters by subpixel positioning - Google Patents
A method and system for simulating motion of a polygon on a display screen. The polygon may be included in a set of polygons used to model a three-dimensional object. The position of the polygon is defined by vertices tracked in a subpixel coordinate system existing in a computer-readable medium. The subpixel coordinates of the vertices are used to identify the pixels on the display screen having coordinates that correspond to subpixel coordinates lying within or, optionally, at the boundary of the polygon. The identified pixels are those that are to be lighted on the display screen to generate the image of the polygon. The display properties of the lighted pixels are selected by interpolation based on defined pixel display parameters assigned to the vertices of the triangle. As motion of the polygon is tracked in the subpixel coordinate system, the corresponding display on the display screen is repeatedly adjusted. The method of identifying and interpolating the display parameters of the pixels using
*  Erik D. Demaine, Blaise Gassend, Joseph O'Rourke, and Godfried T. Toussaint: All Polygons Flip Finitely\dots\ Right?
Every simple planar polygon can undergo only a finite number of pocket flips before becoming convex. Since Erdős posed this finiteness as an open problem in 1935, several independent purported proofs have been published. However, we uncover a plethora of errors, gaps, and omissions in these arguments, leaving only two proofs without flaws and no proof that is fully detailed. Fortunately, the result remains true, and we provide a new, simple (and correct) proof. In addition, our proof handles nonsimple polygons with no vertices of turn angle 180°, establishing a new result and opening several new directions ...
*  polygon | planetmath.org
Although Mathprof has adopted and edited this entry so that the concepts are mathematically precise, I am concerned about the accessibility of this entry to non-mathematicians. The term 'polygon' is one that people encounter very early on and thus, in my opinion, should have an entry that gives basic information about polygons that are both mathematically precise and accessible to the general population.. Also, I am pretty sure that this entry went up for adoption due to the fact that terms such as 'interior angle' and 'exterior angle' are difficult to define in a mathematically precise way. Nevertheless, these terms (along with 'angle sum') are commonly used and should appear somewhere in PM.. I have been toying with creating another polygon entry which is meant for people who do not have the mathematical background that is necessary to understand the bulk of the content of the current entry. Before doing this, I wanted to get other people's opinions on this matter.. ...
*  Polygon Class (System.Windows.Shapes)
Add the Polygon Element myPolygon = new Polygon(); myPolygon.Stroke = System.Windows.Media.Brushes.Black; myPolygon.Fill = System.Windows.Media.Brushes.LightSeaGreen; myPolygon.StrokeThickness = 2; myPolygon.HorizontalAlignment = HorizontalAlignment.Left; myPolygon.VerticalAlignment = VerticalAlignment.Center; System.Windows.Point Point1 = new System.Windows.Point(1, 50); System.Windows.Point Point2 = new System.Windows.Point(10,80); System.Windows.Point Point3 = new System.Windows.Point(50,50); PointCollection myPointCollection = new PointCollection(); myPointCollection.Add(Point1); myPointCollection.Add(Point2); myPointCollection.Add(Point3); myPolygon.Points = myPointCollection; myGrid.Children.Add(myPolygon ...
*  Download Sutherland Hodgman Polygon Clipping Program In C Source Codes, Sutherland Hodgman Polygon Clipping Program In C...
Sutherland Hodgman Polygon Clipping Program In C Codes and Scripts Downloads Free. Properties in C# : A new cover on old book is a tutorial which gives you more information about the properties in C#. Usage of Operator Overloading in C# is a tutorial for the beginners to know about the operator overloading feature in C#.
*  GRASSLIST:4825] Re: transition probability
On Saturday 13 November 2004 12:45 am, you wrote: , Dylan Beaudette wrote: , , If it hasn't, I am wondering if there are a couple of vector commands , , that could do the following: , , , , given an input polygon map of several categories, and a line drawn across , , these categories, , , , , 1. sample the polygon boundaries(and their respective category) that the , , line intersects , , , , 2. put the above information into a new vector line that contains line , , segments that have an attribute that matches the category of the polygon , , that they intersected. , , v.overlay , , Radim Seems that I just figured out the answer to my last question in regards to line vector types. However, I now have another perhaps more complicated problem.. i have two maps: t_1 = line map containing a single line fresno_west = ploygon map with many polygons, and mulitple attributes per polygon: ------------------------- db.describe -c fresno_west Column 1: cat Column 2: AREA Column 3: PERIMETER Column 4: ...
*  Large Composite Bearings Now Available From Polygon
South Bend, IN (Vocus) July 29, 2010 -- Polygon is proud to announce recent product and process expansion has enabled production of large composite bearings
*  Abstract background of triangles polygon design bright colors Carry-All Pouch by fuzzyfox85 | Society6
Buy Abstract background of triangles polygon design bright colors Carry-All Pouch by fuzzyfox85. Worldwide shipping available at Society6.com. Just one of millions of high quality products available.
*  Storing a Collection of Polygons Using Quadtrees - PDF
Storing a Collection of Polygons Using Quadtrees HANAN SAMET University of Maryland and ROBERT E. WEBBER Rutgers University An adaptation of the quadtree data structure that represents polygonal maps (i.e.,
*  Researchers study formation of early cellular life - Healthcanal.com : Healthcanal.com
In modern biology, all life, with the exception of some viruses, uses DNA as its genetic storage mechanism. According to the "RNA-world" hypothesis, RNA appeared on Earth first, serving as both the genetic-storage material and the functional molecules for catalyzing chemical reactions, then DNA and proteins evolved much later. Unlike DNA, RNA can adopt many different molecular conformations and so it is functionally interactive on the molecular level. In the research paper, two professors of chemistry, Christine Keating and Philip Bevilacqua, along with two graduate students, Christopher Strulson and Rosalynn Molden, probe one of the nagging mysteries of the RNA-world hypothesis.. "A missing piece of the RNA-world puzzle is compartmentalization," Bevilacqua said. "It's not enough to have the necessary molecules that make up RNA floating around; they need to be compartmentalized and they need to stay together without diffusing away. This packaging needs to ...
*  glVertexPointer / glTexCoordPointer indexing issue [Archive] - OpenGL Discussion and Help Forums
Hello all, I've been running into a problem I don't know how to sort out. Here's the point: I have arrays containing vertices, normals and texcoords. The problem is that these arrays are not indexed the same way :s I mean: vertices are indexed as absolute index with respect to the current object, the object contains an array with polygons, each containing the indices of the vertices used to build the polygon. In every polygon there is also an array with UV coordinates, but indexed the
*  glPolygonStipple() and rotation [Archive] - OpenGL Discussion and Help Forums
Is there any way to rotate a polygon as well as the 32x32 bitmapped pattern that i've created? In other words, will my polygon stipple rotate along with my polygon? Thanks!