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Java Tutorial/PDF/Circle - История изменений
2026-04-18T20:25:58Z
История изменений этой страницы в вики
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Admin: 1 версия
2010-06-01T05:21:16Z
<p>1 версия</p>
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<td colspan="1" style="background-color: white; color:black; text-align: center;">Версия 05:21, 1 июня 2010</td>
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Admin
http://jexp.ru/index.php?title=Java_Tutorial/PDF/Circle&diff=5515&oldid=prev
в 17:44, 31 мая 2010
2010-05-31T17:44:27Z
<p></p>
<p><b>Новая страница</b></p><div>== Draw a circle with PdfContentByte ==<br />
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<!-- start source code --><br />
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<source lang="java"><br />
import java.awt.Color;<br />
import java.io.FileOutputStream;<br />
import com.lowagie.text.Document;<br />
import com.lowagie.text.Rectangle;<br />
import com.lowagie.text.pdf.GrayColor;<br />
import com.lowagie.text.pdf.PdfContentByte;<br />
import com.lowagie.text.pdf.PdfWriter;<br />
public class MainClass {<br />
public static void main(String[] args) throws Exception {<br />
Document.rupress = false;<br />
Document document = new Document();<br />
PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream("2.pdf"));<br />
document.open();<br />
PdfContentByte cb = writer.getDirectContent();<br />
cb.setColorStroke(new GrayColor(0.2f));<br />
cb.setColorFill(new GrayColor(0.9f));<br />
cb.circle(70, 770, 40);<br />
cb.fillStroke();<br />
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document.close();<br />
}<br />
}</source><br />
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<!-- end source code --><br />
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== Draw more circles ==<br />
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<!-- start source code --><br />
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<source lang="java"><br />
import java.awt.Color;<br />
import java.io.FileOutputStream;<br />
import java.io.IOException;<br />
import com.lowagie.text.Document;<br />
import com.lowagie.text.DocumentException;<br />
import com.lowagie.text.Element;<br />
import com.lowagie.text.Phrase;<br />
import com.lowagie.text.pdf.ColumnText;<br />
import com.lowagie.text.pdf.PdfContentByte;<br />
import com.lowagie.text.pdf.PdfGState;<br />
import com.lowagie.text.pdf.PdfTemplate;<br />
import com.lowagie.text.pdf.PdfTransparencyGroup;<br />
import com.lowagie.text.pdf.PdfWriter;<br />
public class MainClass {<br />
public static void main(String[] args) throws Exception {<br />
Document document = new Document();<br />
PdfWriter writer = PdfWriter.getInstance(document,new FileOutputStream("2.pdf"));<br />
document.open();<br />
PdfContentByte cb = writer.getDirectContent();<br />
float gap = (document.getPageSize().width() - 400) / 3;<br />
pictureCircles(gap, 500, cb);<br />
cb.saveState();<br />
PdfGState gs1 = new PdfGState();<br />
gs1.setFillOpacity(0.5f);<br />
cb.setGState(gs1);<br />
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cb.resetRGBColorFill();<br />
ColumnText ct = new ColumnText(cb);<br />
Phrase ph = new Phrase("Ungrouped objects\nObject opacity = 1.0");<br />
ct.setSimpleColumn(ph, gap, 0, gap + 200, 500, 18,<br />
Element.ALIGN_CENTER);<br />
ct.go();<br />
document.close();<br />
}<br />
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public static void pictureCircles(float x, float y, PdfContentByte cb) {<br />
cb.setColorFill(Color.red);<br />
cb.circle(x + 70, y + 70, 50);<br />
cb.fill();<br />
cb.setColorFill(Color.yellow);<br />
cb.circle(x + 100, y + 130, 50);<br />
cb.fill();<br />
cb.setColorFill(Color.blue);<br />
cb.circle(x + 130, y + 70, 50);<br />
cb.fill();<br />
}<br />
}</source><br />
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<!-- end source code --></div>