the default (x,y) axis for doc object in ABCpdf starts at bottom-left corner. is there any way to make it top-left corner.?
There are a couple of ways to set the origin to top-left.
The simplest method is to set the Doc.TopDown property to true. Alternatively you can specify a transformation matrix.
More info on the Doc.TopDown property can be found here in the documentation for ABCpdf...
I found that I needed to subtract all the y-position items by the height of the document (then get absolute value of that) - I found the height in my case was 840 (using doc.AddGrid();).
I noticed that TopDown stopped working after I'd upgraded from abcpdf v8 to v10 (for tls1.2 security reasons)
private static void SetText(Doc doc, int xposn, int yposn, string text) {
doc.Pos.X = xposn;
doc.Pos.Y = Math.Abs(yposn - 840); //handle TopDown manually using after v10 upgrade
doc.AddText(text);
}
Note that I could not figure out the transformation matrix, but tried this - but didn't know the correct matrix to use:
using (var doc = new Doc()) {
doc.MediaBox.String = "A4"; // this sets the page to A4 (also removes scrollbar showing in the pdf LOL)
//doc.TopDown = true; //2022-02-16 jn appears to not work in v10
var matrix = new Matrix(1.0f, 1.0f, 1.0f, 1.0f, 0.2f, 0.0f);
doc.Transform.Matrix = matrix;
doc.HtmlOptions.Engine = EngineType.Gecko;
doc.HtmlOptions.PageCacheEnabled = false;
doc.HtmlOptions.UseNoCache = true;
doc.HtmlOptions.PageCacheClear();
...
Related
I'm trying to spruce up my Inspector but I'm having a lot of trouble trying to draw text at a specified position in the inspector. I have drawn a colored rectangle on the sample inspector below and want to draw text (like a label) on top of it.
How can I draw text/label at the "X" position shown above? I'm not really sure where to start. Any help would be greatly appreciated.
Implementing the answer:
public override void OnGUI(Rect position)
{
GUIStyle myStyle = new GUIStyle();
myStyle.fontSize = 16;
myStyle.alignment = TextAnchor.UpperLeft;
myStyle.padding.top = 5;
myStyle.padding.left = -3;
myStyle.fontStyle = FontStyle.Bold;
Color32 color = colorSpacer.drawColor; // Custom Property Attribute
EditorGUI.DrawRect(new Rect(position.x-11, position.y, position.width+11, position.height-2), color);
Rect r = GUILayoutUtility.GetLastRect();
EditorGUI.LabelField(r, "Section Header", myStyle);
}
If you are drawing your Custom Editor with EditorGUI, you can use the methods LabelField, PrefixLabel, SelectableLabel or HandlePrefixLabel, depending on your specific desired behavior.
If you are drawing with EditorGUILayout, there are equivalents of those methods.
Also, the HeaderAtribute decorator does that without need for a custom Editor.
Quick version: I’m having trouble displaying a d3 element on a static image displayed by Leaflet. It works if I use d3noob’s (http://bl.ocks.org/d3noob/9211665) example…but I’m having trouble extending it. I’m guessing it’s because of the lang and long translation or the projection but I’m not sure what I need to change. I’m trying to display the geoJSON in the centre of the image (my code on JSFiddle: https://jsfiddle.net/g_at_work/qyhf0qz0/12/)
Longer version:
I'm trying to extend d3noob’s example so that I can display geoJSON on static images using Leaflet and D3 (an requirement from my boss unfortunately). I was able to reproduce d3noob’s tile based example but I've had trouble with the static version.
I've been able to display the static image but I've not been able to display the blue rectangle on the image. I'm not sure what I need to do to manipulate the position of the blue rectangle described in the JSON.
I've tried playing around with setting the coordinates in the projectPoint function but no luck:
function projectPoint(x, y) {
var point = map.latLngToLayerPoint(new L.LatLng(y, x));
this.stream.point(point.x, point.y);
}
At this stage I’m thinking I need to describe a new projection but I’m not sure what.
Here is the code which I’m using to display the static image:
var map = new L.Map("map", {maxZoom:1,center: [0,0], zoom: 3,crs:L.CRS.Simple});
var southWest = map.unproject([0,882],map.getMaxZoom());
var northEast = map.unproject([1085,0],map.getMaxZoom());
var imageBounds = new L.LatLngBounds(southWest,northEast);
L.imageOverlay('http://www.w3schools.com/css/trolltunga.jpg',imageBounds).addTo(map);
map.fitBounds(imageBounds);
It would be great if someone could suggest a strategy for maniuplating the position of the rectangle (I’m new to d3 and leaflet)
Thanks a bunch
G
so after some tinkering I found that creating a new projection enabled me to set the location and scale the map so I could place it where I needed it to be :
var center = d3.geo.centroid(geoShapeInstance);
var scale = [800000];
var offset = [175, 1];
var projection = d3.geo.mercator().scale(scale).center(center).translate(offset);
var path = d3.geo.path().projection(projection);
Fiddling with the 'offset' variable allowed me to set the location and playing with the 'scale' variable allowed me to resize the map (scale is a [x,x] value)
Hope this helps someone.
I'm learning dx11 from Introduction_to_3D_Game_Programming_with_Directx_11.
Everything is ok without msaa. When I enable it, my .fx and C++ codes will not work well.
Do someone experienced it too and how to deal with this situation?
Before Codes:
Texture2D gTexture1;
float4 BLEND_PS(VertexOut_SV pin) :SV_TARGET
{
float4 texColor = float4(0.0f, 0.0f, 0.0f, 0.0f);
texColor = gTexture1.Sample(SamAnisotropic, pin.Tex);
return texColor;
}
because I can't bind a texture created with msaa to a texture2D,so I take msaa ON whenever.
After codes:
Texture2DMS<float4> gTexture1;
float4 BLEND_PS(VertexOut_SV pin) :SV_TARGET
{
float4 texColor = float4(0.0f, 0.0f, 0.0f, 0.0f);
texColor = gTexture1.Load(int2(pin.Tex.x*1400, pin.Tex.y*900), 0);
return texColor;
}
But the texColor is not right pixel I want.How to sample an SRV with msaa?
How to convert an UAV without msaa into a SRV with msaa?
And how to enable and disable msaa in C++ game codes with corresponding hlsl codes?
Do I have to keep different hlsl for each other?
For 'standard' MSAA use, you do the following:
When creating your swap chain and render traget view, set DXGI_SWAP_CHAIN_DESC.SampleDesc.Count or DXGI_SWAP_CHAIN_DESC1.SampleDesc.Count to 2, 4, 8, etc.
When creating your depth buffer/stencil, you need to use the same sample count for D3D11_TEXTURE2D_DESC.SampleDesc.Count.
When creating your render target view, you need to use D3D11_RTV_DIMENSION_TEXTURE2DMS (or pass nullptr for the view description so it matches the resource exactly)
When creating your depth buffer/stencil view, you need to use D3D11_DSV_DIMENSION_TEXTURE2DMS (or pass nullptr for the view description so it matches the resource exactly)
When rendering, you need to use a rasterizer state with D3D11_RASTERIZER_DESC.MultisampleEnable set to TRUE.
See also the Simple rendering tutorial for DirectX Tool Kit
Sample count
Depending on the Direct3D feature level, some MSAA sample counts are required for particular render target formats. Use can use CheckFormatSupport to verify render target format supports MSAA:
UINT formatSupport = 0;
if (FAILED(device->CheckFormatSupport(m_backBufferFormat, &formatSupport)))
{
throw std::exception("CheckFormatSupport");
}
UINT flags = D3D11_FORMAT_SUPPORT_MULTISAMPLE_RESOLVE
| D3D11_FORMAT_SUPPORT_MULTISAMPLE_RENDERTARGET;
if ( (formatSupport & flags) != flags )
{
// error
}
You then use CheckMultisampleQualityLevels to verify the sample count is supported. This code finds the highest supported MSAA level count for a particular format:
for (m_sampleCount = D3D11_MAX_MULTISAMPLE_SAMPLE_COUNT;
m_sampleCount > 1; m_sampleCount--)
{
UINT levels = 0;
if (FAILED(device->CheckMultisampleQualityLevels(m_backBufferFormat,
m_sampleCount, &levels)))
continue;
if ( levels > 0)
break;
}
if (m_sampleCount < 2)
{
// error
}
You can also validate the depth/stencil format you want to use supports D3D11_FORMAT_SUPPORT_DEPTH_STENCIL | D3D11_FORMAT_SUPPORT_MULTISAMPLE_RENDERTARGET.
Flip Style modes
The technique above only works for the older "bit-blt" style flip modes DXGI_SWAP_EFFECT_DISCARD or DXGI_SWAP_EFFECT_SEQUENTIAL. For UWP and DirectX 12 you are required to use DXGI_SWAP_EFFECT_FLIP_SEQUENTIAL or DXGI_SWAP_EFFECT_FLIP_DISCARD which will fail if you attempt to create a back buffer with a SampleCount > 1.
In this case, you create the backbuffer with a SampleCount of 1, and create your own MSAA Render Target 2D texture. You have your Render Target View point to your MSAA render target, and before you Present you call ResolveSubresource from your MSAA render target to the backbufffer. This is exactly the same thing that DXGI did for you 'behind the scenes' with the older flip models.
For gamma-correct rendering (aka when you use a backbuffer format ending in _SRGB), the newer flip styles require that you use the non-SRGB equivalent for the backbuffer format or the swapchain create will fail. You set the SRGB format on the render target view instead.
I am currently loading images at runtime from directories stored in an XML file, and assigning them to RawImage components via the WWW class. While this is working fine, the image is skewed to fit into the new texture size.
I am wondering how to get an image’s original size or aspect ratio so that I can change the size of the image rect to suit. The images to be imported are at varying sizes and therefore the approach used needs to be responsive to the original size of imported images.
Any suggestions would be much appreciated. [Scripting in uJS]
Many thanks in advance, Ryan
function loadContextImage(texLocation : String)
{
if (!imageView.activeSelf)
{
imageView.SetActive(true);
}
var wwwDirectory = "file://" + texLocation; //this will probably need to change for other OS (PC = file:/ [I think?]) - **REVISE**
var newImgTex = new Texture2D(512, 512);
while(true){
var www : WWW = new WWW(wwwDirectory);
yield www;
www.LoadImageIntoTexture(newImgTex);
if (www.isDone){
break; //if done downloading image break loop
}
}
var imageRender : UI.RawImage = imageView.GetComponent.<RawImage>();
imageRender.texture = newImgTex;
}
If you cannot use an Image (for nay valid reasons), you can get the width and height of the texture:
WWW www = new WWW(url);
yield return www;
Texture2D tex = www.texture;
float aspectRatio = tex.height / tex.width;
rawImage.width = width;
rawImage.height = width * aspectRatio;
This should make the rect of the image of the appropriate ratio of the texture.
If you can use Image and preserveAspectRatio, you get it done by Unity. The result is not necessarily the same since it will keep the dimensions of the box and make the Sprite occupies as much space while keeping ratio.
I am using iTextSharp to export reports in PDF format. Reports' headers should have following format:
The problem is to align report header by center of the page, while there is an image on the left of the page. When I use a table, report header is aligned by center of its cell, not by center of the page. Is there a better approach?
EDIT:
Code for adding header is following:
var doc = new Document(pageSize, margins.Width, margins.Width, margins.Height, margins.Height);
using (PdfWriter.GetInstance(doc, destination))
{
doc.Open();
var headerTable = new PdfPTable(1){ WidthPercentage = 100 };
RenderHeader(headerTable); // adds several lines to headerTable
doc.Add(headerTable);
}
Do you really need a PdfPTable?
Why not add a Paragraph with the data that is right-aligned, followed by a couple of Paragraphs that are centered.
Then add the image at an absolute position, for instance:
Image img = Image.GetInstance(path_to_image);
img.SetAbsolutePosition(36, PdfWriter.getVerticalPosition(true));
document.Add(Image);
Another option is to add the Image in a table or a cell event instead of adding it straight to the table. Suppose that your PdfPTable consists of a single row and a single column, then you could define a cell event like this:
public class ImageCell : IPdfPCellEvent {
public void CellLayout(
PdfPCell cell, Rectangle position, PdfContentByte[] canvases
) {
float x1 = position.Left + 2;
float y1 = position.Top - 2;
float y2 = position.Bottom + 2;
PdfContentByte canvas = canvases[PdfPTable.LINECANVAS];
Image img = Image.GetInstance(path_to_image);
img.scaleToFit(10000, y1 - y2);
img.SetAbsolutePosition(x1, y2);
canvas.AddImage(img);
}
}
Suppose that cell is the PdfPCell with the date and the title, then you can do this:
cell.CellEvent = new ImageCell();
Note that in this case, the image will be scaled to the height of the cell.
Forgive me if the code doesn't compile right away, I'm writing this by heart (based on experience), I didn't test the actual code.