Question

有没有特殊方法可以在Delphi中查看TPaintBox（Canvas）上的坐标（x，y）？我知道（0; 0）点在画布的左上方，但我想知道我们是否可以看到其他数字。提前谢谢。

Answer 1

您可以通过这种方式查看表单标题上的坐标;

$ journalctl -b -f CONTAINER_ID=$(docker ps | grep k8s_kube-controller-manager | awk '{ print $1 }')

Jan 02 04:48:28 ip-172-31-4-117.us-west-1.compute.internal dockerd-current[8063]: I0102 04:48:28.752141
1 reconciler.go:287] attacherDetacher.AttachVolume started for volume "kuard-pv" (UniqueName: "kubernetes.io/aws-ebs/vol-0d275986ce24f4304") from node "ip-172-3
Jan 02 04:48:39 ip-172-31-4-117.us-west-1.compute.internal dockerd-current[8063]: I0102 04:48:39.309178
1 operation_generator.go:308] AttachVolume.Attach succeeded for volume "kuard-pv" (UniqueName: "kubernetes.io/aws-ebs/vol-0d275986ce24f4304") from node "ip-172-

$ kubectl describe pod kuard
...
Volumes:
  kuard-data:
    Type:       PersistentVolumeClaim (a reference to a PersistentVolumeClaim in the same namespace)
    ClaimName:  kuard-pvc
    ReadOnly:   false

$ kubectl describe pv kuard-pv
Name:            kuard-pv
Labels:          failure-domain.beta.kubernetes.io/region=us-west-1
                 failure-domain.beta.kubernetes.io/zone=us-west-1b
                 type=amazonEBS
Annotations:     kubectl.kubernetes.io/last-applied-configuration={"apiVersion":"v1","kind":"PersistentVolume","metadata":{"annotations":{},"labels":{"type":"amazonEBS"},"name":"kuard-pv","namespace":""},"spec":{"acce...
                 pv.kubernetes.io/bound-by-controller=yes
StorageClass:    
Status:          Bound
Claim:           default/kuard-pvc
Reclaim Policy:  Retain
Access Modes:    RWO
Capacity:        5Gi
Message:         
Source:
    Type:       AWSElasticBlockStore (a Persistent Disk resource in AWS)
    VolumeID:   vol-0d275986ce24f4304
    FSType:     ext4
    Partition:  0
    ReadOnly:   false
Events:         <none>

$ kubectl version -o json
{
  "clientVersion": {
    "major": "1",
    "minor": "9",
    "gitVersion": "v1.9.0",
    "gitCommit": "925c127ec6b946659ad0fd596fa959be43f0cc05",
    "gitTreeState": "clean",
    "buildDate": "2017-12-15T21:07:38Z",
    "goVersion": "go1.9.2",
    "compiler": "gc",
    "platform": "linux/amd64"
  },
  "serverVersion": {
    "major": "1",
    "minor": "9",
    "gitVersion": "v1.9.0",
    "gitCommit": "925c127ec6b946659ad0fd596fa959be43f0cc05",
    "gitTreeState": "clean",
    "buildDate": "2017-12-15T20:55:30Z",
    "goVersion": "go1.9.2",
    "compiler": "gc",
    "platform": "linux/amd64"
  }
}

当您离开PaintBox1时，标题将显示最后一个坐标。

有没有办法在Canvas上激活可见坐标系？

1 个答案: