svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.library / org.gvsig.raster / org.gvsig.raster.lib / org.gvsig.raster.lib.buffer.impl / src / main / java / org / gvsig / raster / lib / buffer / impl / PaginatedBandFloat.java @ 44831
History | View | Annotate | Download (3.06 KB)
1 | 44831 | jjdelcerro | package org.gvsig.raster.lib.buffer.impl; |
---|---|---|---|
2 | |||
3 | import java.nio.FloatBuffer; |
||
4 | import java.util.Arrays; |
||
5 | |||
6 | import org.slf4j.Logger; |
||
7 | import org.slf4j.LoggerFactory; |
||
8 | |||
9 | import org.gvsig.raster.lib.buffer.api.Band.BandFloat; |
||
10 | import org.gvsig.raster.lib.buffer.api.BandNotification; |
||
11 | import org.gvsig.raster.lib.buffer.api.BandPageManager; |
||
12 | import org.gvsig.raster.lib.buffer.api.BufferManager; |
||
13 | import org.gvsig.raster.lib.buffer.api.NoData; |
||
14 | |||
15 | /**
|
||
16 | * @author fdiaz
|
||
17 | *
|
||
18 | */
|
||
19 | public class PaginatedBandFloat extends AbstractPaginatedBand implements BandFloat { |
||
20 | |||
21 | private static final Logger logger = |
||
22 | LoggerFactory.getLogger(PaginatedBandFloat.class); |
||
23 | |||
24 | /**
|
||
25 | * @param rows
|
||
26 | * @param columns
|
||
27 | * @param noData
|
||
28 | * @param rowsPerPage
|
||
29 | * @param pageManager
|
||
30 | */
|
||
31 | public PaginatedBandFloat(int rows, int columns, NoData noData, BandPageManager pageManager) { |
||
32 | super(rows, columns, noData, pageManager);
|
||
33 | } |
||
34 | |||
35 | @Override
|
||
36 | public int getDataType() { |
||
37 | return BufferManager.TYPE_FLOAT;
|
||
38 | } |
||
39 | |||
40 | protected int getDataSize() { |
||
41 | return 4; |
||
42 | } |
||
43 | |||
44 | @Override
|
||
45 | public Object get(int row, int column) { |
||
46 | return getValue(row, column);
|
||
47 | } |
||
48 | |||
49 | @Override
|
||
50 | protected void doSet(int row, int column, Object value) { |
||
51 | setValue(row, column, (float) value);
|
||
52 | } |
||
53 | |||
54 | @Override
|
||
55 | protected void doFill(Object value) { |
||
56 | value = nullValueToNoData(value); |
||
57 | if(value == null){ |
||
58 | value = 0;
|
||
59 | } |
||
60 | |||
61 | for(int row=0; row<this.rows; row+=this.rowsPerPage){ |
||
62 | loadPage(row); |
||
63 | Arrays.fill((float[])data.array(), (float) value); |
||
64 | } |
||
65 | } |
||
66 | |||
67 | @Override
|
||
68 | public float getValue(int row, int column) { |
||
69 | loadPage(row); |
||
70 | return ((FloatBuffer) data).get( ((row-firstRowOfPage)*this.columns) + column); |
||
71 | } |
||
72 | |||
73 | @Override
|
||
74 | public void setValue(int row, int column, float value) { |
||
75 | doSetValue(row, column, value); |
||
76 | notifyObservers(new DefaultBandNotification(BandNotification.SET, new Object[]{row, column, value})); |
||
77 | } |
||
78 | |||
79 | protected void doSetValue(int row, int column, float value) { |
||
80 | loadPage(row); |
||
81 | ((FloatBuffer) data).put(((row-firstRowOfPage)*this.columns) + column, value); |
||
82 | } |
||
83 | |||
84 | @Override
|
||
85 | public float[] createRowBuffer() { |
||
86 | return new float[getColumns()]; |
||
87 | } |
||
88 | |||
89 | @Override
|
||
90 | public void fetchRow(int row, Object rowBuffer) { |
||
91 | loadPage(row); |
||
92 | float[] source = (float[]) data.array(); |
||
93 | float[] target = (float[]) rowBuffer; |
||
94 | System.arraycopy(source, (row-firstRowOfPage)*this.columns, target, 0, this.columns); |
||
95 | } |
||
96 | |||
97 | @Override
|
||
98 | protected void doPutRow(int row, Object rowBuffer) { |
||
99 | loadPage(row); |
||
100 | float[] source = (float[]) rowBuffer; |
||
101 | float[] target = (float[]) data.array(); |
||
102 | System.arraycopy(source, 0, target, (row-firstRowOfPage)*this.columns, this.columns); |
||
103 | } |
||
104 | |||
105 | @Override
|
||
106 | protected void loadPage(int row) { |
||
107 | if (data == null) { |
||
108 | data = FloatBuffer.allocate(calculateBufferSizeToAllocate(rows, columns));
|
||
109 | } |
||
110 | super.loadPage(row);
|
||
111 | } |
||
112 | } |