英文:
points not plotting in plot function
问题
我尝试在栅格层的特定坐标上绘制点。
> head(coords_df)
x y
1 66.5 66.5
2 67.0 66.5
3 67.5 66.5
4 68.0 66.5
5 68.5 66.5
6 69.0 66.5
我尝试使用以下方式绘制：
plot(CNRM_1)
points(coords_df, pch=16)
栅格图绘制出来了，但点没有显示出来。请帮助我找到问题所在。
> dput(head(CNRM_1))
structure(c(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0.000796599906001783, 0, 0, 0,
0, 0, 0, 0, 0, 0.000837936005501152, 0.000871552319509912,
0.00100709419004943, 0, 0, 0.0012105632950364, 0, 0, 0, 0,
0.00103714216752641, 0.00104333072151312, 0.000794459549629719,
0.00198828994745526, 0.00232027342913862, 0.00152433704387084,
0.00145669475130489, 0, 0, 0, 0.00106764166637498, 0.00133117261345192,
0.000751185736039872, 0.00205181592210355, 0.00235624992234934,
0.00160364560215041, 0.00225981611592611, 0, 0, 0, 0.00094873888615985,
0.00159345054110917, 0.000750502129892894, 0.00166613986487262,
0.00245039132047496, 0.00204705133350925, 0.00264872849452662,
0, 0, 0, 0.000704677797913744, 0.00158751407612522, 0.00105819696412664,
0.00112746366228874, 0.00220263084576204, 0.00300220982410644,
0.00268456275374276, 0, 0, 0, 0, 0.00112959733971154, 0.00153415586525737,
0.000503537889893361, 0.000948829835912542, 0.00221998566976762,
0.0031083088899198
), dim = c(10L, 20L), dimnames = list(c("1", "2", "3", "4", "5",
"6", "7", "8", "9", "10"), c("1", "2", "3", "4", "5", "6", "7",
"8", "9", "10", "11", "12", "13", "14", "15", "16", "17", "18",
"19", "20")))
> dput(head(coords_df))
structure(list(x = c(66.5, 67, 67.5, 68, 68.5, 69), y = c(66.5,
66.5, 66.5, 66.5, 66.5, 66.5)), row names = c(NA, 6L), class = "data.frame")
英文:
I'm trying to plot points on certain coordinates on a raster layer.
> head(coords_df)
x y
1 66.5 66.5
2 67.0 66.5
3 67.5 66.5
4 68.0 66.5
5 68.5 66.5
6 69.0 66.5
Im trying to plot using the following
plot(CNRM_1)
points(coords_df, pch=16)
the raster is plotting but not the points. any help on where to fix this?
> dput(head(CNRM_1))
structure(c(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0.000796599906001783, 0,
0, 0, 0, 0, 0, 0, 0, 0.000837936005501152, 0.000871552319509912,
0.00100709419004943, 0, 0, 0.0012105632950364, 0, 0, 0, 0, 0.00103714216752641,
0.00104333072151312, 0.000794459549629719, 0.00198828994745526,
0.00232027342913862, 0.00152433704387084, 0.00145669475130489,
0, 0, 0, 0.00106764166637498, 0.00133117261345192, 0.000751185736039872,
0.00205181592210355, 0.00235624992234934, 0.00160364560215041,
0.00225981611592611, 0, 0, 0, 0.00094873888615985, 0.00159345054110917,
0.000750502129892894, 0.00166613986487262, 0.00245039132047496,
0.00204705133350925, 0.00264872849452662, 0, 0, 0, 0.000704677797913744,
0.00158751407612522, 0.00105819696412664, 0.00112746366228874,
0.00220263084576204, 0.00300220982410644, 0.00268456275374276,
0, 0, 0, 0, 0.00112959733971154, 0.00153415586525737, 0.000503537889893361,
0.000948829835912542, 0.00221998566976762, 0.0031083088899198
), dim = c(10L, 20L), dimnames = list(c("1", "2", "3", "4", "5",
"6", "7", "8", "9", "10"), c("1", "2", "3", "4", "5", "6", "7",
"8", "9", "10", "11", "12", "13", "14", "15", "16", "17", "18",
"19", "20")))
> dput(head(coords_df))
structure(list(x = c(66.5, 67, 67.5, 68, 68.5, 69), y = c(66.5,
66.5, 66.5, 66.5, 66.5, 66.5)), row.names = c(NA, 6L), class = "data.frame")
答案1
得分: 1
不确定 CNRM_1 的情节应该是什么样的，也许可以尝试 图像，然后添加 点：
image(CNRM_1)
pp <- data.frame(x = c(0, 0.6), y = c(0.4, 0.8))
points(pp, pch = 16)
英文:
Not sure how the plot is supposed to look like for CNRM_1, maybe try image, then add points:
image(CNRM_1)
pp <- data.frame(x = c(0, 0.6), y = c(0.4, 0.8))
points(pp, pch = 16)
答案2
得分: 0
The reason the points from coords_df don't show up is because the x- and y-axes are different between CRNM_1 and coords_df.
I agree that it's difficult to see what you want the final plot to look like, and image is likely the way to go. However, since you used plot(CNRM_1) in your original approach, to add the points from coords_df, you would need to add a new plot using par(new = TRUE).
plot(CNRM_1)
par(new = TRUE)
plot(coords_df, pch = 16,
axes = FALSE,
ylab = "", xlab = "")
英文:
The reason the points from coords_df dont show up is because the x- and y-axes are different between CRNM_1 and coords_df.
I agree that it's difficult to see what you want the final plot to look like and image is likely the way to go. However, since you used plot(CNRM_1) in your original approach, to add the points from coords_df you would need to add a new plot using par(new = TRUE)
plot(CNRM_1)
par(new = TRUE)
plot(coords_df, pch = 16,
axes = FALSE,
ylab = "", xlab = "")
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